Need Help: How to Repair Contact Services on 3350

[Rinvend]

Can anyone pls tell me how to repair "Contact Services" on 3350

[green gerbil]

use eeprom tools by bphreaks and connect your phone with an mbus cable. then turn it on and click test. it will tell you likely cause of contact service.

[windbreaker]

try reflashing the mcu+ppm+eeprom then use KNOK 22 for changing IMEI and setting the faid after that use nokia profile for factory settings. Good luck...

[ma1362]

if you're going to flash it in full, the phone may or may not turn-on. try to read the cause of c.s. by using Wintesla, from there u will know the cause of the c.s. If it display " Eeprom checksum", try to flash it by using "virgin eeprom" and then calculate the FAID so that you will get a signal.

Cheers!
ma1362

[chunkhead]

I know this is an old thread, but for future reference...

Got a water damaged 3350 with contact service, ran test in Eeprom tools, and found that cobba parallel had failed! To fix this i used a butane powered hot air blower (soldering iron/hot air blower) to heat the cobba for a while! This re-flowed the solder underneath the chip and re-connected the parallel!

Hope this helps someone!

Cheers!

[cedric]

Hello ppl, my only suggestion if ur in a hurry for repairs re-heat ur eeprom p.s. use only a certified hot air to avoid damages to ur sensitive parts. 2nd flash it with full back-up after that ull get result,,,Remember if u got a msg. MCU error ur phone problem is CPU...

Thats all folks