Huawei G510 keeps rebooting and TWRP not working

[Guest Dalfi]

Hi guys, my sister has this phone and she has the following problem: the phone keeps crashing just after inserting the PIN (it says that the process.gapps or process.swiftkey has stopped working). We don't even have time to reach settings. I went in recovery mode (TWRP 2.8.0.0) and wiped data, system, etc, but after the reboot I noticed that the phone was in the exact same state it was before factory reset! Flashing a new ROM is not working either. I tried to change and downgrade recovery, but nothing. I also tried Original Firmware and Vol+, Vol-, Power, but it says

 

"update exception 

emmc is readonly, you can't update your system"

 

Any suggestion? ADB does not find it in fastboot mode.

Edited April 27, 2015 by Dalfi

[Guest killadroid]

just flash a new rom like aosp or cm10.1 & also remove pin request

[Guest peraaaa]

i have exactly the same problem on my g510. i try flash with custom rom, but i cant install it.. Can you help me please?