Why Backing Up Comes First

Ask anyone who has bricked a TV box what they regret most. It’s never the flash — it’s discovering after a bad flash that there is no original firmware to go back to:

• A bad flash without a backup = no way back. The stock firmware for your exact board revision may be impossible to find later.
• Sellers delete download links. That firmware ZIP on the product page today can be gone next month.
• Forum threads die. Community stock dumps disappear when file hosts expire or threads get abandoned.
• Your exact revision may never get a public dump. Budget boxes ship in silent hardware revisions; nobody may ever upload your board’s image.
• Backup takes minutes; regret lasts. Five minutes now beats days of hunting — or a dead box.

What PhoenixSuit Can (and Can’t) Back Up

Connect the box to your PC in normal (powered-on) mode, open PhoenixSuit, and switch to the Device tab. It offers to back up your installed applications. Be honest about its limits:

Where to Keep Your Backup

• Two places minimum: on your PC and a second copy on a USB stick or cloud storage. One copy is no copy.
• Label everything: TX1_H313_2+16GB_2026-10-15.img — model, chip, RAM/storage, date. Future-you won’t remember which file was which.
• Keep the driver installer too: if you ever need to reflash from a different PC, you’ll want the Allwinner USB drivers handy — drivers page.

No Backup and the Box Is Already Bricked?

If you’re reading this after the disaster, don’t flash a random image out of desperation — the wrong firmware makes things worse. Do this instead:

• Contact the seller and ask for the factory .img for your exact model and hardware revision. This works more often than people expect.
• Search the XDA forums for a thread matching your exact model — community stock dumps live there.
• Browse our Allwinner firmware hub for model-specific guidance on honest firmware sources.
• Never flash another model’s image just because the chip name matches — wrong board, wrong RAM config, or wrong Wi-Fi chip means a deeper brick.

Frequently Asked Questions

Where should I store the backup?

In two places: on your PC and on a second copy (USB stick or cloud storage). Label the file with model + hardware revision + date, e.g. TX1_H313_2+16GB_2026-10-15.img, so you can identify it months later.

Can PhoenixSuit back up the whole box as an .img file?

No. PhoenixSuit’s Device-tab backup covers installed applications, not a full system image. Your real ‘system backup’ is the original firmware .img file itself — keep a copy of every file you flash.

I already flashed and lost everything. Can I get my data back?

No — flashing with format wipes the box completely, and there’s no undo. Focus on getting a working box again with the correct firmware for your exact model.

Should I back up before every flash?

Yes. Even when you’re reflashing the same ROM, save a fresh copy of the .img and your app backup first. It takes minutes; hunting down firmware later can take days or fail entirely.

Is It a Soft-Brick or a Dead Box?

These two look similar but need different fixes. Check your symptoms:

Step 1: Try the Soft Fixes First

Don’t reach for the flasher yet. These take five minutes and fix most logo-freezes:

1. Hard power cycle: unplug the power adapter for 30 seconds, then plug it back into a wall socket (not the TV’s USB port, which is often underpowered).
2. Boot into recovery: unplug power, press and hold the reset pinhole button (toothpick works), plug the power back in while holding it for about 10 seconds. The Android recovery menu should appear.
3. Wipe cache partition first — this keeps your apps and data.
4. If the logo freeze persists, do a factory reset / wipe data from the same menu. Warning: this erases all apps and settings.
5. Select Reboot and wait — the first boot after a wipe takes several minutes. Be patient before declaring it dead.

Step 2: Reflash the Firmware with PhoenixSuit

If the soft fixes didn’t work, the system partition is too damaged for a wipe — reflash the stock firmware:

1. Get the correct .img for your exact model and hardware revision. Warning: flashing the wrong model’s package can turn a soft-brick into a hard brick. Honest sources only: the seller page, or the XDA forum thread for your exact model — see our firmware hub for model-specific guidance.
2. Install the Allwinner USB drivers if you haven’t already — drivers page.
3. Power the box OFF, hold the reset button, connect USB to your PC while holding reset — the box enters FEL mode and PhoenixSuit detects it.
4. In the Firmware tab select your .img, choose Yes to format, and click Upgrade. Do not touch anything until the green success bar appears.

Full walkthrough with screenshots: How to use PhoenixSuit.

Step 3: If the PC Doesn’t Detect the Box

If PhoenixSuit never sees the box in FEL mode, stop and fix detection first — it’s almost always drivers or cable, not a dead board:

• Reinstall the Allwinner USB drivers — drivers page.
• Use a known-good USB data cable and a rear motherboard USB port — see our USB flashing accessories guide.
• Work through the full checklist: Device not detected in PhoenixSuit.

Frequently Asked Questions

What’s the difference between ‘stuck on logo’ and ‘bricked’?

Stuck on the logo is a soft-brick: the bootloader still works, but the system partition is damaged so Android can’t load — it’s fixable with a wipe or a reflash. A hard brick means a black screen with no response at all, which needs an FEL-mode reflash and is harder to recover from.

I wiped cache and did a factory reset, but it’s still stuck on the logo. Now what?

Reflash the stock firmware with PhoenixSuit — that’s the next step up from a wipe (Step 2 above). If the PC can’t detect the box at all in FEL mode, work through our device-not-detected guide before giving up.

Will reflashing delete my apps and settings?

Yes. Reflashing with format wipes everything on the box. There’s no way around it — that’s why a backup matters before you flash.

How do I keep this from happening again?

Don’t interrupt OTA updates or flashing, only flash firmware built for your exact model and hardware revision, and keep a copy of your stock .img file so you always have a way back.

Identify Your Box

The Tanix TX68 is sold in several RAM/storage configurations, and the name alone doesn’t guarantee which board revision you have. Before flashing, confirm you actually have a Tanix TX68 with the Allwinner H618:

• Check the sticker on the bottom of the box — it lists the model name and usually the RAM/storage config.
• On a working box, go to Settings → About and check the chip/CPU info.
• If the box is already bricked, use the seller listing or packaging to confirm the revision — do not guess.

Confirm the Chip: Allwinner H618

PhoenixSuit only works with Allwinner chips. The H618 is a quad-core Cortex-A53 SoC with an updated video engine, common in TV boxes from 2022 onward. Confirm it:

Where to Find the Firmware

To get the right .img package:

• Go to the seller page where you bought the box (or the brand’s support page) and look for a firmware/download section matching your exact model name + hardware revision.
• Check the sticker on the bottom of the box — the hardware revision must match the firmware package.
• Custom ROMs: the TX68 shows up in third-party custom-ROM compatibility roundups such as Troypoint’s SlimBOX device list. If you want a custom ROM, find the thread for your exact TX68 revision on the XDA forums and follow that thread’s instructions to the letter — we don’t host or verify third-party images.
• Never use a generic package: a firmware built for a different board or RAM/storage configuration can brick the device even if the chip name matches.
• If the seller provides no firmware, contact them and ask for the factory .img for your exact revision before attempting anything.

How to Flash with PhoenixSuit

Full step-by-step walkthrough: How to use PhoenixSuit. The short version:

1. Install the Allwinner USB drivers on your Windows PC first — without them PhoenixSuit cannot see the box in FEL mode. Download the drivers · full walkthrough on our drivers page.
2. Install PhoenixSuit from the official package (see download page for version notes).
3. Get the correct firmware .img for your exact model and hardware revision (see the section above). Place it somewhere you can find it.
4. Open PhoenixSuit, go to the Firmware tab and click Image to select your .img file.
5. Power the box OFF completely (unplug the power adapter). Hold the reset button (tiny pinhole, usually on the bottom or back), then connect the box to your PC with a USB cable while keeping reset pressed for a few seconds. The box enters FEL (flash) mode — PhoenixSuit should detect it.
6. PhoenixSuit will ask whether to format. Choose Yes for a clean flash. Warning: this wipes all data on the box.
7. Click Upgrade and wait. Do not unplug the USB cable or the PC until the green success bar appears.
8. Unplug, connect the box to your TV and power it on. The first boot after flashing takes several minutes — be patient.

Unbrick Tips

If your box won’t boot after a bad flash, work through these before giving up:

• Re-enter FEL mode carefully: unplug everything, hold reset, then plug in USB. Timing matters — try a few times.
• Swap the cable and USB port: cheap charge-only cables are a classic failure point. Use a known-good USB data cable (a proper data cable) and a rear motherboard USB port.
• Reinstall the drivers: a yellow exclamation mark in Windows Device Manager means the driver didn’t stick. See the drivers page.
• Try a different PC — driver conflicts on one machine sometimes vanish on another.
• Check the power supply: after flashing, boot with the original 5V/2A adapter. Underpowered adapters cause boot loops that look like bricks.
• Flash the correct .img again — most “bricks” are just the wrong firmware. Reflash with the right file for your exact model + hardware revision.

Frequently Asked Questions

Where can I download the stock firmware for the Tanix TX68?

We don’t host firmware files. Start with the seller page where you bought the box (or the brand’s support page), matching your exact model name and hardware revision. Community threads on the XDA forums for the TX68 sometimes collect stock dumps — only use a file confirmed for your exact revision, and never a generic or “universal” image.

Is the Tanix TX68 compatible with SlimBOXtv?

The TX68 shows up in third-party custom-ROM compatibility roundups such as Troypoint’s SlimBOX device list. If you want a custom ROM, find the thread for your exact TX68 revision on the XDA forums and follow that thread’s instructions to the letter — we don’t host or verify third-party images.

PhoenixSuit doesn’t detect my TX68. What now?

In almost all cases this is a driver or cable problem: reinstall the Allwinner USB drivers, use a known-good USB data cable (not a charge-only cable), try a rear motherboard USB port, and make sure you’re holding the reset button while connecting so the box enters FEL mode.

Will flashing erase my apps and settings?

Yes. A full flash with format wipes everything on the box. Back up anything important first — see our backup guide.

Identify Your Box

The Tanix TX1 is sold in several RAM/storage configurations, and the name alone doesn’t guarantee which board revision you have. Before flashing, confirm you actually have a Tanix TX1 with the Allwinner H313:

• Check the sticker on the bottom of the box — it lists the model name and usually the RAM/storage config (the common TX1 ships as 2+16GB).
• On a working box, go to Settings → About and check the chip/CPU info.
• If the box is already bricked, use the seller listing or packaging to confirm the revision — do not guess.

Confirm the Chip: Allwinner H313

PhoenixSuit only works with Allwinner chips. The H313 is a quad-core Cortex-A53 SoC common in budget TV boxes. Confirm it:

Where to Find the Firmware

To get the right .img package:

• Go to the seller page where you bought the box (or the brand’s support page) and look for a firmware/download section matching your exact model name + hardware revision.
• Check the sticker on the bottom of the box — the hardware revision must match the firmware package.
• Custom ROMs: the TX1 is one of the boxes the community has documented running SlimBOXtv custom firmware (there are video walkthroughs on YouTube). If you want a custom ROM, find the thread for your exact TX1 revision on the XDA forums and follow that thread’s instructions to the letter — we don’t host or verify third-party images.
• Never use a generic package: a firmware built for a different board or RAM/storage configuration can brick the device even if the chip name matches.
• If the seller provides no firmware, contact them and ask for the factory .img for your exact revision before attempting anything.

How to Flash with PhoenixSuit

Full step-by-step walkthrough: How to use PhoenixSuit. The short version:

1. Install the Allwinner USB drivers on your Windows PC first — without them PhoenixSuit cannot see the box in FEL mode. Download the drivers · full walkthrough on our drivers page.
2. Install PhoenixSuit from the official package (see download page for version notes).
3. Get the correct firmware .img for your exact model and hardware revision (see the section above). Place it somewhere you can find it.
4. Open PhoenixSuit, go to the Firmware tab and click Image to select your .img file.
5. Power the box OFF completely (unplug the power adapter). Hold the reset button (tiny pinhole, usually on the bottom or back), then connect the box to your PC with a USB cable while keeping reset pressed for a few seconds. The box enters FEL (flash) mode — PhoenixSuit should detect it.
6. PhoenixSuit will ask whether to format. Choose Yes for a clean flash. Warning: this wipes all data on the box.
7. Click Upgrade and wait. Do not unplug the USB cable or the PC until the green success bar appears.
8. Unplug, connect the box to your TV and power it on. The first boot after flashing takes several minutes — be patient.

Unbrick Tips

If your box won’t boot after a bad flash, work through these before giving up:

• Re-enter FEL mode carefully: unplug everything, hold reset, then plug in USB. Timing matters — try a few times.
• Swap the cable and USB port: cheap charge-only cables are a classic failure point. Use a known-good USB data cable (a proper data cable) and a rear motherboard USB port.
• Reinstall the drivers: a yellow exclamation mark in Windows Device Manager means the driver didn’t stick. See the drivers page.
• Try a different PC — driver conflicts on one machine sometimes vanish on another.
• Check the power supply: after flashing, boot with the original 5V/2A adapter. Underpowered adapters cause boot loops that look like bricks.
• Flash the correct .img again — most “bricks” are just the wrong firmware. Reflash with the right file for your exact model + hardware revision.

Frequently Asked Questions

Where can I download the stock firmware for the Tanix TX1?

We don’t host firmware files. Start with the seller page where you bought the box (or the brand’s support page), matching your exact model name and hardware revision. Community threads on the XDA forums for the TX1 sometimes collect stock dumps — only use a file confirmed for your exact revision, and never a generic or “universal” image.

Can I flash SlimBOXtv or another custom ROM on the TX1?

Yes — the TX1 is one of the boxes the community has documented running SlimBOXtv, with video walkthroughs on YouTube. Custom ROMs come from their own threads on the XDA forums: follow that thread’s instructions exactly, because the steps and files differ from stock flashing. PhoenixSuit can flash any .img you load, but we can’t verify third-party images.

PhoenixSuit doesn’t detect my TX1. What now?

In almost all cases this is a driver or cable problem: reinstall the Allwinner USB drivers, use a known-good USB data cable (not a charge-only cable), try a rear motherboard USB port, and make sure you’re holding the reset button while connecting so the box enters FEL mode.

Will flashing erase my apps and settings?

Yes. A full flash with format wipes everything on the box. Back up anything important first — see our backup guide.

Identifique seu aparelho

A Proeletronic é uma marca brasileira, e o PROSB-3000 usa o chip Allwinner H313. Antes de atualizar, confirme que você tem exatamente este modelo:

• Verifique a etiqueta na parte de baixo do aparelho — deve constar o nome do modelo e a memória RAM/armazenamento.
• Com o aparelho funcionando, vá em Configurações → Sobre e confira as informações do chip/CPU.
• Se o aparelho já está “morto” (brick), use a embalagem ou o anúncio do vendedor para confirmar o modelo — não adivinhe.

Confirme o chip: Allwinner H313

O PhoenixSuit funciona apenas com chips Allwinner. O H313 é um processador quad-core Cortex-A53 comum em TV boxes de entrada. Confirme:

Onde baixar o firmware

Para obter o pacote .img correto:

• Procure o anúncio onde você comprou o aparelho e veja se há seção de firmware/download correspondente ao seu modelo exato + revisão de hardware.
• Entre em contato com o vendedor ou com o suporte da Proeletronic e peça o firmware de fábrica para a sua revisão exata antes de tentar qualquer coisa.
• Há vídeos em português no YouTube mostrando a atualização do PROSB-3000 — eles podem ajudar a entender o processo, mas o arquivo certo continua sendo o do seu modelo.
• Nunca use um pacote genérico: um firmware feito para outra placa ou outra configuração de RAM/armazenamento pode inutilizar o aparelho mesmo que o nome do chip seja igual.

Passos com PhoenixSuit

1. Instale os drivers USB Allwinner no seu PC com Windows primeiro — sem eles o PhoenixSuit não enxerga o aparelho no modo FEL. Tutorial completo na nossa página de drivers.
2. Instale o PhoenixSuit a partir do pacote oficial.
3. Obtenha o firmware .img correto para o seu modelo exato e revisão de hardware (veja acima).
4. Abra o PhoenixSuit e carregue o .img na aba Firmware.
5. Coloque o aparelho em modo FEL: desconecte tudo, segure o botão de reset e então conecte o cabo USB. Quando o PhoenixSuit perguntar sobre formatação, escolha Yes. Atenção: isso apaga todos os dados.
6. Clique em Upgrade e aguarde. Não desconecte o cabo USB nem a energia até aparecer a barra verde de sucesso.
7. Desconecte, ligue o aparelho na TV. A primeira inicialização após a atualização leva vários minutos.

Guia ilustrado completo: como usar o PhoenixSuit.

Dicas de recuperação (unbrick)

Se o aparelho não liga depois de uma atualização ruim, tente na ordem:

• Entre no modo FEL com calma: desconecte tudo, segure o reset e conecte o USB. O timing importa — tente algumas vezes.
• Troque cabo e porta USB: cabos baratos “só de carga” são um ponto clássico de falha. Use um cabo de dados bom e uma porta USB traseira da placa-mãe.
• Reinstale os drivers: veja dispositivo não detectado e a página de drivers.
• Tente outro PC — conflitos de driver às vezes somem em outra máquina.
• Verifique a fonte: depois de atualizar, inicialize com a fonte original de 5V/2A. Fontes fracas causam boot loops que parecem brick.
• Travou em 7%? Veja como corrigir o 7% travado.

Perguntas frequentes

Onde baixo o firmware do Proeletronic PROSB-3000?

Peça ao vendedor ou ao suporte da Proeletronic o firmware de fábrica para a sua revisão exata de hardware. Não hospedamos arquivos de firmware, e não existe uma imagem “universal” segura.

Atualizar o firmware apaga meus apps e configurações?

Sim. Uma atualização completa com formatação apaga tudo no aparelho. Não há como fazer backup prático de um aparelho brickado, então encare como um recomeço.

O PC não reconhece o PROSB-3000. Está morto?

Provavelmente não. Quase sempre é problema de driver, cabo ou timing do modo FEL — não placa morta. Reinstale os drivers USB Allwinner, use um cabo de dados de qualidade numa porta USB traseira e segure o botão de reset ao conectar.

Identify Your Q Plus

The Q Plus name covers several budget-box revisions. Before flashing, confirm you have the Allwinner H616 variant:

• Check the sticker on the bottom of the box and your original seller listing for the model name, RAM/storage, and chip.
• On a working box, open Settings → About and check the chip/CPU line for “H616”.
• If the box is already bricked, the packaging or seller listing is the only reliable source — do not guess.

Confirm the Chip: Allwinner H616

PhoenixSuit only works with Allwinner chips. The H616 is a quad-core Cortex-A53 SoC common in budget TV boxes. Confirm it:

Where to Find the Firmware

To get the right .img package:

• Check the dedicated XDA firmware thread for the Q Plus (H616) — users share images that worked for their exact revision. Read the thread before downloading.
• Go to the seller page where you bought the box (or the brand’s support page) and look for a firmware/download section matching your exact model name + hardware revision + RAM/storage.
• Never use a generic package: a firmware built for a different board or RAM/storage configuration can brick the device even if the chip name matches.
• If the seller provides no firmware, contact them and ask for the factory .img for your exact revision before attempting anything.

How to Flash with PhoenixSuit

1. Install the Allwinner USB drivers on your Windows PC first — without them PhoenixSuit cannot see the box in FEL mode. Full walkthrough on our drivers page.
2. Install PhoenixSuit from the official package.
3. Get the correct firmware .img for your exact Q Plus revision and RAM/storage configuration (see above).
4. Open PhoenixSuit and load the .img via the Firmware tab.
5. Put the box into FEL mode: unplug everything, hold the reset button, then plug in the USB cable. When PhoenixSuit prompts to format, choose Yes. Warning: this wipes all data.
6. Click Upgrade and wait. Do not unplug the USB cable or power until the green success bar appears.
7. Unplug, connect the box to your TV and power it on. The first boot after flashing takes several minutes.

Full step-by-step walkthrough: how to use PhoenixSuit.

Unbrick: PC Doesn’t See the Device

The most common Q Plus report is simply “the PC doesn’t recognize the device”. That is almost never a dead box — it is a driver or connection problem. Work through these:

• Reinstall the Allwinner USB drivers: a yellow exclamation mark in Windows Device Manager means the driver didn’t stick. Start with device not detected and the drivers page.
• Swap the cable and USB port: cheap charge-only cables are a classic failure point. Use a known-good data cable and a rear motherboard USB port.
• Hold reset longer: unplug everything, hold the reset button firmly, then plug in USB. Timing matters — try several times, and keep the button held for a few seconds after connecting.
• Try a different PC — driver conflicts on one machine sometimes vanish on another.
• Flash the correct .img again — most “bricks” are just the wrong firmware. Reflash with the right file for your exact revision.
• Check the power supply: after flashing, boot with the original 5V/2A adapter. Underpowered adapters cause boot loops that look like bricks.
• Stuck at 7%? See fix 7 percent stuck.

Frequently Asked Questions

My PC doesn’t recognize the bricked Q Plus. Is it dead?

Probably not. “PC doesn’t see the device” is almost always a driver, cable, or FEL-mode timing issue — not a dead board. Reinstall the Allwinner USB drivers, use a real data cable on a rear USB port, and hold the reset button while connecting.

Where do I download Q Plus (H616) firmware?

Check the dedicated XDA firmware thread for your exact Q Plus revision, or ask your seller for the factory .img. We do not host firmware files, and there is no “universal” image that works across revisions.

Will flashing erase my apps and settings?

Yes. A full flash with format wipes everything on the box. There is no practical way to back up a bricked box, so treat flashing as a fresh start.

Identify Your T95 Sub-Model

“T95” is a brand name, not a single box. It has been sold with several different chips (Allwinner H313, H313, H616, plus Amlogic and Rockchip variants), so step one is confirming you have the Allwinner H616 version:

• Check the sticker on the bottom of the box and your seller’s listing — look for “H616” in the model/CPU description.
• On a working box, open Settings → About and check the chip/CPU info.
• If the box is already bricked, the packaging or the original listing is the only reliable source — do not guess. Flashing H313 firmware onto an H616 board (or vice versa) will brick it.

Confirm the Chip: Allwinner H616

PhoenixSuit only works with Allwinner chips. The H616 is a quad-core Cortex-A53 SoC found in many budget boxes. Confirm it:

Where to Find the Firmware

To get the right .img package:

• Check the long-running XDA forum thread “T95 Allwinner H616 TV Box” — users share working images and board-specific warnings there. Read the whole thread before downloading anything.
• Go to the seller page where you bought the box and look for a firmware/download section matching your exact sub-model + hardware revision + RAM/storage.
• Firmware files are often named like T95 H616 10.0 A25 V2.img. Treat the name as a clue, not proof: if the name contains A24, A25, or X25, do not flash it (locked bootloader, per the XDA warning above).
• Never use a generic package: a firmware built for a different board or RAM/storage configuration can brick the device even if the chip name matches.

How to Flash with PhoenixSuit

1. Install the Allwinner USB drivers on your Windows PC first — without them PhoenixSuit cannot see the box in FEL mode. Full walkthrough on our drivers page.
2. Install PhoenixSuit from the official package.
3. Get the correct firmware .img for your exact T95 H616 sub-model and hardware revision (see above). Verify the filename does not contain A24/A25/X25.
4. Open PhoenixSuit and load the .img via the Firmware tab.
5. Put the box into FEL mode: unplug everything, hold the reset button, then plug in the USB cable. When PhoenixSuit prompts to format, choose Yes. Warning: this wipes all data.
6. Click Upgrade and wait. Do not unplug the USB cable or power until the green success bar appears.
7. Unplug, connect the box to your TV and power it on. The first boot after flashing takes several minutes.

Full step-by-step walkthrough: how to use PhoenixSuit.

Unbrick Tips

If your T95 won’t boot after a bad flash, work through these before giving up:

• Re-enter FEL mode carefully: unplug everything, hold reset, then plug in USB. Timing matters — try a few times.
• Swap the cable and USB port: cheap charge-only cables are a classic failure point. Use a known-good data cable and a rear motherboard USB port.
• Reinstall the drivers: a yellow exclamation mark in Windows Device Manager means the driver didn’t stick. See device not detected and the drivers page.
• Try a different PC — driver conflicts on one machine sometimes vanish on another.
• Check the power supply: after flashing, boot with the original 5V/2A adapter. Underpowered adapters cause boot loops that look like bricks.
• Flash the correct .img again — most “bricks” are just the wrong firmware (wrong sub-model, or an A24/A25/X25 locked-bootloader image). Reflash with the right file.
• Stuck at 7%? See fix 7 percent stuck.

Frequently Asked Questions

Why does my T95 show only 1.2GB or 1.6GB of storage after flashing?

You flashed an image built for a different board: its partition layout doesn’t match your flash chip. Find the firmware for your exact T95 H616 sub-model and hardware revision, and flash it again.

Can I flash A24, A25, or X25 firmware on my T95?

No — don’t. As XDA users warn: “Don’t flash A24, A25, X25… All these ROMs have locked Bootloader.” Flashing them will brick the box.

Which T95 do I have? There are so many versions.

Check the sticker on the bottom of the box and your original seller listing for the chip name — you need “Allwinner H616”. Never guess the sub-model: flashing firmware for the wrong variant is the most common brick cause.