Телефон ZTE Blade A452 android 5.1

[moks777]

Hello.
I have a problem, help pliz.
android 5.1
ZTE A452!
the problem is ...:
the phone worked perfectly. and right now works not bad .... if not ... the problem

took the child played on the play market.
after which I took it, and laid it on the table.
I lay for 1 hour.
picked up the look there is no wi-fi.
I try to turn it on, I press it as it seems ...
5 sec. he turned himself off.
and that's it!
also with bluetooth, and GPS.

GPS on Google maps sometimes includes a location, but again it's buggy .. and loses the signal.
that I did ..... and it did not help:
1. Reset to factory settings
2. Set the exact time.
discharged bodies to 0 and losses included.
3. Firmware. put the firmware from ZTE X3 even.

nothing helps.
right now I want to try and put the Android on the version later 5.0.
also in the forum prompted.
but where?
and how to find out? will suit?

who knows what to do to tell me plizz
I will be very grateful.
heartily.

[drooffy]

moks777, т.е. wifi отваливается?
Разбирался аппарат?

[moks777]

No phone did not understand