Big problem, Pls help me.

[baobao52571]

Hi everybody,

I had just changed my phone (O2 xda) mainboard. because my phone suddenly entered the RGB screen when i was using it. i sent a fix shop to repair.the problem was not resolved .it was more serious. so i change the mainboard. but the wifi can not work. i'm in china. so official Prophet 830 has not wi-fi chip. can anybody help me confirm my phone mainboard has the wi-fi chip.

Another problem, after i flashed the rom , the phone prompt me "no sim card" and the power charge management display the phone is charging. but i am not charge at all.I take down the battery and sim card. next day ,i install the sim card and battery. the phone is normal. but serverl hours or one day, the error message also display. i search more and update more roms,but no useful.it is no change. someone told me maybe power manager IC is damaged.
i didn't know the problem is a software or hardware issue.

can anybody help me.

thanks a lot.

my phone,

O2 Xda
IPL:2.20
SPL:2.2000(G3)
GSM:2.71.11

[boyie]

i am also in china .i am just using o2 xda

maybe the new mainboard is for 830

china'830 doesn't have wifi``

so you can't repair it!

[baobao52571]

maybe have some method confirm it ?

because the fixed shop can not confirm it. you know it is normal in china.

i didn't changed the mainboard in official manufacturer. the price is very expensive. so i changed a used mainboard.

thanks your reply.