One of my friend has a Huawei Ascend Mate, and he gave it to me. The phone was never modified (root, rom etc.). Like a month ago a lot of files just dissappeared from the device, and the apps unexpectedly closed sometimes. I've tried a hard reset, but it didn't help. 5 days ago, it just turned off by itself. When I turn it on, it shows a huawei ascend logo then an android logo and it stucks.
I downloaded the original B221 update, copied the dload file to the root of an sdcard, I entered to the recovery mode but it's not working, just shows some items in the menu. The problem is that it stucks before the usb driver is loaded, so I can't do anything via adb (can't reboot to bootloader), and the original recovery menu is useless.
BTW: when the recovery mode loads, it says this: E:failed to mount /cache (Invalid argument)
So I can't format the cache partition.
Is there any solution?