Hello, good afternoon, I need the generous help of the forum, I have a 4G ADAS CMIRROR 10 inches, I had a problem with the 4G network, it is working without any problem and from one moment to another it stopped working, to recover its operation I require the Bluavido firmware to I installed 10 inches of version 12 and the icons were very large and its operating system is Android 8.1, whoever could help solve this problem would be eternally grateful, thanks greetings
System partition is not protected by the locked bootloader.
Only boot and recovery are
Drivers and firmware and a lot more information is available at
It's in Russian. So use Google translate in chrome.
the long read get ready for 107 pages in very broken English.
But there is a lot of useful information.
Look for links to something called the "research download tool" "research upload tool" something like that I can't remember.
There's a hidden button inside one of the external connectors that puts into programming mode. in this mode you can dump and write anything to the firmware as long as you don't modify the boot or recovery partitions. You use the research tool to dump the existing firmware as "PAC" file. You can then use the research tool to replace ,add or remove files from the system.img. you can also swap cellular modem firmwares, etc.
You can also flash back to the device
All the system files are signed with the default key from the Android SDK.
There was a drop-in file replacement for gaining root , on page 81 I think. The download link is now dead.
---------- Post added at 06:34 AM ---------- Previous post was at 06:19 AM ----------
There's a pre-rooted rooted rom in there somewhere.
By Compare the differences, maybe we can figure out what they did to achieve root, so that we can perform a similar stitching on our own vendor ROMs.
Yes, it's page 81 (post #1612). The link is not dead, login details are needed to download. Problem is you can't register if you can't complete the russian captcha. Any russian fellow with access there could repost the "root.7z" file here? That one seems to root most Android 8.1 mirrors.
I have an Android 8.1 based DVR mirror for my car and I need some assistance gaining root access into it. The mirror was bought on Amazon and has an ASN of B07QM1RHC6 and is described as TOOGOO 219865. In the software it says it is a QcTech HMSA5E. Here is what I know about the device:
- It is based on a Spreadtrum SC9832e
- The software version is QC_HMSA5E_A5_966_Media_Sleep_2019090919
- OTA update is provided by fota.redstone.net.cn
- when I open an adb shell my prompt is sp8541e_srvm
I also have the partition layout. Under the developer menu there is an option to enable root over adb, it is protected by a four digit pin.
I would appreciate any help gaining root access either via the pin via some hack door.