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Device Cannot Connect to Computers If Flashing from H8296's Stock Firmware First #546

Closed samduanx closed 4 years ago

samduanx commented 4 years ago

Platform: tama Device: akari (H8296) Kernel version: 4.14 Android version: 10 Software binaries version: 10.0.7.1

Previously working on All devices flashed from H8266. (Dual SIM version since H8266 and 96 are dual devices.) Regardless of SODP versions.

Description USB connection with a computer won't work if the device flashed SODP from H8296's stock firmware.

Symptoms Using a Chinese mainland variant (I do not know if that matters) of H8296, when flashing SODP based on any stock firmware of H8296, the USB connection with a computer won't work. Flashing from H8266's will. This also happened in issue #531.

ROM is not compiled by @MartinX3. He claimed that his H8296 worked OOB.

I acknowledge that SODP is designed for H8216 and H8266. I also know that SODP should work OOB on H8296.

How to reproduce

  1. Flash the stock firmware of H8296 using Flash mode. Boot it up.
  2. Flash SODP using fastboot. Boot it up.
  3. Connect the phone to a computer. (The issue could be reproduced with a H8296. I don't have other tama devices.)

Additional context Log gotten with "dmesg | grep -i usb". dmesg_log.txt

ix5 commented 4 years ago

Which stock firmware are you using, respectively? I see 52.0.A.11.32 as the latest Customized CN for H8296 on XperiFirm, whereas H8266 shows 52.1.A.0.618 for most releases. Could you see whether the issue lies in the different versions? There should be .618 available for H8296 via Customized IN.

samduanx commented 4 years ago

I have now flashed back to the stock ROM, 52.1.A.0.532 from the HK version. However, when I was using AOSP I flashed both 52.0.A.11.32 of CN version and .532 from India version, which both did not work. Then I flashed .532 of Customized SG (H8266) which led to a working USB.

ix5 commented 4 years ago

Ok, thanks for the info. So that's a tricky one I guess. The main partitions that persist(hah!) from the Stock firmware to installing SODP are: modem, dsp, qnovo, diag/misc/appslog(mostly irrelevant) and... persist. So if you find the time, you could compare the contents of the persist partition (mounted at /mnt/vendor/persist) between the two ROMs. Qnovo could also be a culprit, but I doubt it. And the bootloader could also be different.

But maybe more straightforward would be capturing logs from working and non-working states. Please attach the full logs, not filtered with grep. If you think you want to highlight something, you can additionally paste excerpts here in triple backticks, like so: ```

samduanx commented 4 years ago

OK, I may try to do it again when I have free time since I need my XZ2 in production state for now. (The coronavirus outbreak in China led us university students to learn online, and a working phone is needed.)

ix5 commented 4 years ago

Please validate again after https://github.com/sonyxperiadev/kernel/pull/2225

If this is not reproducible, please close.