Hisense A7 soft bricked, please help, thx!

[daopeng]

I have a Hisense A7 running on Android 10, and I first unlocked bootloader on Windows 11 with no problems, but then stuck at extracting boot.img. The terminal returns 'bad command args' error and so I searched closed issues list to find a solution untill stumbled upon using 'adb reboot autodloader' then desperately runned it only to find my phone freezed and unresponsive. I then checked #6 and got to the step of installing libusbK using Zadig but not sure what to do next, the 3 commands seemed to be phone specific. Please advise what to do to save the phone. Thanks a lot.

[TomKing062]

there is a splloader(unmodified) in unlock tool folder, the command to write back is

spd_dump exec_addr 0x3f28 fdl fdl1-dl.bin 0x5500 fdl uboot-mod.bin 0x9efffe00 exec write_part splloader spl.bin reset

[daopeng]

Thanks so much for your reply. Could you also elaborate which driver to use in Zadig and how to enter download mode to execute the above command? The thing is, I have tried both WinUSB and libusbK, pressing power+up+down combo, and the phone is still unresponsive, the terminal throws Waiting for connection and find port failed error. Thanks again!

[TomKing062]

uploaded libusb spd_dump to release

[daopeng]

Thanks so much. I downloaded it and find libusb and SPRD folder, after comparing the date of spd_dump.exe, I used libusb folder as the working folder and also copied Channel9.dll from the other one into it, but the terminal gave me custom_exec_no_verify_3f28.bin does not exist. error. However, I used spd_dump_interactive.exe and could get to the BROM> prompt, so things are definitely going to the right direction. What shall I do next, thanks!

[TomKing062]

extract to ud710_hisense_a7.zip folder (replace packed SPRD ver)

[daopeng]

It worked! Thanks sooooo much! You're the best!

[daopeng]

My phone is saved and it's been great! Thanks so much! Now I have the bootloader unlocked, Magisk installed, but still couldn't extract the boot.img with the updated spd_dump.exe and libusb driver, using the original address 0x3f88 (not the fallback address 0x3f28 as directed) with the command spd_dump exec_addr 0x3f88 fdl fdl1-dl.bin 0x3f88 fdl uboot-mod.bin 0x9efffe00 exec read_part boot 0 35M boot.img reset, the terminal gave me timeout reached error. Could you help please? Thanks a lot.

[TomKing062]

spd_dump exec_addr 0x3f88 fdl fdl1-dl.bin 0x5500 fdl uboot-mod.bin 0x9efffe00 exec read_part boot 0 35M boot.img reset

[daopeng]

I'll give it a try and many, many thanks!

[daopeng]

Voila, it runs smoothly! Now I have the boot.img! Thanks sooooo much, really appreciate it. I'll go on with the rest steps then.

[daopeng]

I'm happy to report back: all done. rooted! Thanks a lot man, really appreciate your help!