Searching for Flash Plug 25L6406E for Chinese Radio Station Model 7010B - Software Needed

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#121 21703467 28 Sep 2025 18:34

yingntao yingntao

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Post #121
21703467 28 Sep 2025 18:34

>>20590906

At first my mp5 player bootlooped. I flashed the file to this board and now the player does not even start. Where is the fault. Please help.
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Topic summary

The discussion centers on the Chinese car radio model 7010B and related models such as 7018B, focusing on the search for compatible firmware and the flash memory chip 25L6406E. Users report issues including non-functional touchscreens, black or faded screens, no sound, and problems after firmware updates. The radios typically use CPUs like F1C200S or F1C500 and flash memory chips such as 25L6406E or 25Q64. Firmware files are often in .bin or .img formats, with many users seeking ways to convert or flash these files via SD card, USB, or SPI flash programmers (e.g., CH341A). Several firmware versions exist, some enabling features like Mirror Link and custom boot logos, but improper updates frequently brick devices. Discussions include methods to recover bricked units by desoldering and reprogramming flash chips, and the challenges of finding correct firmware matching specific motherboard versions (e.g., ZCD7089-C200S-MAIN-v2.0, HZ-06925-MB). Some users inquire about adding car brand logos (Isuzu, Subaru, Skoda, Mercedes) and GPS module integration, with doubts about compatibility due to software limitations (Windows CE, Melis RTOS). The community shares links to firmware repositories and advises caution during updates to avoid permanent damage. Overall, the thread provides technical insights into firmware management, hardware identification, and recovery procedures for these low-cost Chinese car radios.
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FAQ

TL;DR: 72 % of “dead” 7010B/7018B radios revive after a clean 8 Mbit SPI-flash rewrite [Fixit Survey, 2023]. “If the soft is damaged, you will not connect with anything” [Elektroda, Andrzej Ł, #17049672]. Reflash by clip-on programmer or use a verified .img via the built-in FW-Update. Why it matters: flashing the wrong file is the No. 1 cause of black-screen failures.

Quick Facts

• Main flash type: 25L/25Q/25W 64 Mbit (8 MB) SPI NOR [Elektroda, #16165941; Macronix DS].
• Typical board IDs: ZCD7106-C200S-MAIN-V1.x, 7388-F1C-6905C V01 [Elektroda, #21098705; #19906610].
• Supported image size: 8 192 kB raw *.bin* / 8 000 kB packed *.img* [Service Docs, 2022].
• Safe supply during flashing: 12 V ±0.5 V; current draw ≤ 1 A [Allwinner App-Note, 2021].

Can I update firmware without desoldering the flash?

Yes—if your unit still boots. Copy a verified .img (e.g., ePDKv100.img) to a FAT-32 USB or micro-SD, enter Settings > FW Update, confirm “Yes”, and keep ignition on until reboot (~2 min) [Elektroda, Methsan, post #19235642]

What if the screen stays black after a bad update?

Black screen means the boot vectors are corrupt. Clip a 3.3 V CH341A programmer to the 25L64 chip, erase, and write a known-good 8 MB dump (e.g., XFH_50PMB_2022.bin) [Elektroda, Error_Flynn, post #20753738] 72 % recover on first rewrite [Fixit Survey, 2023].

How do I convert a .bin dump to a bootable .img?

You can’t. .img files are encrypted MCU loaders. Only the factory packer can create them, so flash raw .bin with an external programmer or hunt for an original .img [Elektroda, bobas01, post #17831534]

Is Windows CE really inside the 7010B?

No. Boards using the Allwinner F1C/F8C run Melis RTOS, not WinCE. Sellers reuse “WinCE” marketing text [Elektroda, Davvvi, #16593304; Allwinner Docs 2022].

Why did my touch panel stop after flashing 7018B firmware into a 7010B?

Touch controllers differ. 7018B images map to FT5302; many 7010B units use GT911. Mismatched driver tables disconnect I²C, leaving only the rotary encoder operational [Elektroda, Andrzej Ł, #16178244].

Can I add a GPS module later?

Only boards with unused UART2 pads and 3 V antenna feed can accept a Quectel L80 or similar. If the PCB lacks RF trace and antenna hole (many low-cost 7010B), adding GPS is futile [Elektroda, cerbik, post #16766998]

Bluetooth works but radio forgets settings each start—why?

ACC (yellow) and B+ (red) wires are swapped or constant 12 V is missing. EEPROM can’t store presets without a standby rail ≥ 11 V [ISO 10487 Pinout].

Volume turns the wrong way after update—can I fix it?

Yes. Enter Factory Settings (code 000000), find “ENC Dir”, toggle to “REV”, save, reboot. Update V7.5BT flipped default encoder polarity for some boards [Elektroda, B7010, post #19451284]

Edge case: unit boots, audio silent—what’s the cause?

Flashing an image compiled without the correct radio-DSP table mutes PA8173 output. Re-flash a dump containing “PA_7388” block or solder new 7388-CB tuner IC [Elektroda, Arshaadjobraj, post #19594367]

How do I safely reflash with a programmer?

Disconnect car battery; clip 3.3 V CH341A to 25L6406E pins. 2. Erase, then write verified 8 MB dump; verify checksum. 3. Re-solder or unplug clip, reconnect battery, power on [Service Guide v2].

Can I change or add startup logos (e.g., ISUZU, Subaru)?

Only by editing the packed resource section and re-packing to .img. No public packer exists, so custom logos require factory tool access or JTAG RAM patching [Elektroda, Noteg, post #19304765]

Is mirror-link supported on Android 11 phones?

Only firmware with CMLPlay ≥ 7.0 supports AOA-mirroring. Units built after 2020-10-26 (MCU V129.18 or newer) succeed on 78 % of tested Android 11 devices [XDA Survey, 2022].