I have a phone named Tecno Spark 7T running Android 11. When I tried to install the APKs, I noticed I couldn't install because of this error > Package Installer not working Afterwards, I have tried SAI (Split APK Installer). It gives the proper error > Couldn't download in FRP

My Tecno F1 Pro is stuck on the boot animation. I'm trying to hard reset my Tecno F1 Pro, but in Android Recovery, I'm getting this error. Supported API: 3 E:failed to mount /cache: Invalid argument E:Failed to mount /cache/recovery/last_locale E:failed to mount /cache: Invalid argument How to fix it?

I have located a firmware package of my tablet brand. It also has the same build number. The variant number is also identical to mine. I extracted the zip file and got a boot image. Now reassure myself all was going to be ok; I tried to open it on win 10 PC. The PC, responded with an error message. "The file is corrupt." I have not installed it and am hesitant to use it. Thus, my question above. I intend to use ADB to and Magisk. I have no recovery TWRP for my build and brand tablet.

I am trying to unlock the bootloader of my Tecno Spark 10c to install custom ROM on it.

C:\Users\Monami and Agnibha\OneDrive\Documents\tecno_root\platform-tools>fastboot flashing unlock
FAILED (remote: 'unknown cmd.')
fastboot: error: Command failed

C:\Users\Monami and Agnibha\OneDrive\Documents\tecno_root\platform-tools>fastboot oem unlock
FAILED (remote: 'Unlock bootloader fail.')
fastboot: error: Command failed

C:\Users\Monami and Agnibha\OneDrive\Documents\tecno_root\platform-tools>fastboot oem unlock-go
FAILED (remote: 'unknown cmd.')
fastboot: error: Command failed

C:\Users\Monami and Agnibha\OneDrive\Documents\tecno_root\platform-tools>fastboot flashing unlock_critical
FAILED (remote: 'Not implement.')
fastboot: error: Command failed

C:\Users\Monami and Agnibha\OneDrive\Documents\tecno_root\platform-tools>

I have tried everything, and every command, stack forum, and other website doesn't help. Please help if any experts are there.

I uninstalled certain apps/services via adb, then disabled the USB Debugging option. After restart the phone's settings option is not working. Please suggest how to enable developer options, usb debugging so that I can reinstall the same for user 0. At max I am able to see list of system apps. Please help.

My device: Tecno Camon 19 (cl6n) I need to unlock bootloader, adb see my phone correctly, fastbootd too. But when I do adb reboot bootloader neither the phone nor the PC can see each other. Phone says that after 60 seconds without action, the phone will reboot, and on the PC

devices

gives an empty line, if you try to use any fastboot command, the text "Waiting for any device" will appear. I installed usb drivers and vc reddists, so i dont know why its not working.

I have a Tecno phone with Android 8.1.0 Go. YouTube Go is my system app, however, I grew tired of using it because of its limited features and decided to install the YouTube app. But that's when the trouble started. The app downloads until 100% and then shows that it is installing and then nothing, nothing at all back to square one, and no error is shown. I have enough space, I have cleared data and cache for Play Store, restarted the phone, even tried APKs but still, nothing worked. What could be the issue? The only advice I have received so far is to root the phone. What should I do? Other apps download and install just fine.

I am using a Tecno Pop 2 Power device. It runs on Android 8.1 (Oreo, Go Version). It's a new device. When I launched it, it came pre-installed with the "YouTube Go" app, which is in no way a replacement for the traditional YouTube app. When I try to download YouTube from the Play Store, it downloads but doesn't install. Other applications install just fine, except YouTube. Is there a way to install it? Something I'm not doing right?

How do I get Play Store on my Tecno M7 phone? It didn't come preinstalled.