Wet 7110 CS MCU ROM error

[Mateusz]

My brother's 7110 4.88 got wet and started to double blink and shows CS. The same happens when connecting to the charger. <br />The phone was never flashed and never had a simlock. <br />I browsed the hardware repair section, found similar topic, so checked the phone with MBUS and PC Locals the output looks like this (I skipped the OK results):<br />MCU ROM checksum test Failed(Err code 1) <img src="eek.gif" border="0"> <br />MCU Ram component test Not executed<br />MCU EEprom Component Not executed<br />RTC Backup battery test Not executed<br />AD converter test Not executed<br />SW reset test Not executed<br />IMEI test Not executed<br />SIM lock check test Not executed

<br />Although Nokia Service Centre wrote the repair of the phone is too expensive, I am not convinced, because I know NSCs are sick of repairing 7110s here (also this suited me - the phone was insured).<br />I understand there is a chance to fix it by flashing with 4.88 soft. But I am completely new to dejan flashing (don't even have a cable yet)and have some questions:<br />- Should I make a full backup? I see people taking partial backups but I prefer to be on the safe side, can I use just a part of the full backup when something goes wrong?<br />- What next? I have got 4.88 partial (64k), but that is probably not enough. Should I look for full backup and flash some address of the phone?<br />- What about the language version? Does it matter? It had Polish, English and German, but I do not remember what else (I do not know how to check it now)

Best regards<br />******z Szczurek

[Crew]

It's common sw fault that I've met in 4.88 version<br />So flash MCU ROM image the same version <br />then you phone will be repaired

WBR<br />Crew<br />P/S don't forget to make full backup 200000-600000<br />of your phone

[QUOTE]Originally posted by ******z:<br />[QB]My brother's 7110 4.88 got wet and started to double blink and shows CS. <br />MCU ROM checksum test Failed(Err code 1)