Lenovo X606X Firmware downgrade
Lenovo X606X Firmware downgrade
(16-02-2021, 09:58 AM)Dave1608 Hi, I have purchased a Lenovo TB-X606X tablet that is running Android 10. I would like to downgrade this to Android 9 as I have an application that'll not work on the newer version.
I have spent a lot of time googling this but I am still confused as there are many different views. I have the genuine Android 9 ROM files for this model and also the Android 10 version. So far I have used SP Flash Tool and sent the Android 9 files to the device but once the green tick box appeared, the unit would not boot or go into recovery mode, it was dead. I then reflashed with the Android 10 files and it worked again.
Can you tell me what I am doing wrong please.
(17-02-2021, 09:44 AM)Dave1608 ...There are 3 releases of firmwares for this device at that location, one is the version on my device and then two earlier ones. I have tried both of the earlier versions and I see the same issue, dead unit, but if i reflash the version TB-606X_S3001143_210110_BMP, then the tablet comes back to life.
(17-02-2021, 09:44 AM)Dave1608 As per your instruction, I went to the link and I then used method 1, recovery mode, and it displays:
TB-X606X_EEA/X606X
10/QPIA.190711.020/TB-X606X_USR_S300114_2101100011_V9.56_BMP_ROW
I did try the adb pull /system/build.prop command from method 2 but I got an error message:
adb: error: failed to copy '/system/build.prop' to '.\build.prop': remote open failed: Permission denied
I had activated Developer mode, allowed USB debugging and turned on the OEM Unlocking feature but I still saw the same error.
(18-02-2021, 05:03 PM)Dave1608 Hi, appologies for not reading your message correctly. I have now used method 7 and they match:
ro.build.display.id=TB-X606X_S300007_200923_BMP from Firmware Version: TB-X606X_S300007_200923_BMP
ro.build.display.id=TB-X606X_S100253_200903_BMP from Firmware Version: TB-X606X_S100253_200903_BMP
ro.build.display.id=TB-X606X_S100109_200412_BMP from Firmware Version: TB-X606X_S100109_200412_BMP
I tried reloading both of the earlier firmwares again, with the preloader unticked, and both times the unit was dead - nothing on the screen, no vibration on power up and wouldn't go into recovery. As soon as i reload version TB-X606X_S300007_200923_BMP, the unit works fine again.
Many thanks for looking at this for me, any other help would be appreciated.
(19-02-2021, 10:52 AM)Dave1608 Hi, The tablet is a sealed device i.e. the screen is glued to the case, so unfortunately I cannot disconnect the battery. As soon as I reflash with the original firmware version TB-X606X_S300007_200923_BMP, the unit works straight away.