V36xx Motorola

[Mod]

Hi, all.

I hope someone can help me on this.

I had several motorolas with irritating background noise, some on 900Mhz some on 1800Mhz.

Is there a repair possible, where i must look ?

Regards<br />Mod.[E sgsm@WANADOO.nl

[Bert]

Hello<br />That just caused by a simple problem you just need to change the GCAP ( 79Exx xx will be 26 ,27 56 etc ) . after you change it your problem will be solved ! <img src="smile.gif" border="0"> good luck!

<br />** GCAP is the uBGA chip left side of the RAM

[acyl2000]

Agree. Bert is expert in Motorola phone. <img src="smile.gif" border="0"> <img src="smile.gif" border="0"> <img src="smile.gif" border="0">

[Mod]

Hi, thanks for reply.

I guess i found the uBGA under metal shielding, its called

9IJ<br />N6KI<br />P79E26

Is this the one ?<br />Doesnt look easy to me, i need BGA tool i geuss?<br />Or is this on the other side under metal shielding

M<br />x79E28<br />REV 2.6<br />XAA9904

Could you tell me function of this ?<br />And tips to remove it.

Thanks very much <br />Mod.

[Bert]

Yes,<br /> 9IJ<br />N6KI<br />P79E26<br />Is the correct one , well the hot air gun could<br />be help you to do such reflow, I think you gona get some scrap board to do some exercise first <img src="smile.gif" border="0">

[Mod]

Thanks, Bert

Ill practice before..<br />Could this BGA could be the cause of<br />finding no Network too ?

I have a v3690 too with no network.<br />Flash is ok.

Thanks<br />Mod.

[Bert]

Hi<br />Your are welcome <img src="smile.gif" border="0"> usually Gcap has no relation with network signal , There are few parts are relate for frequency, saw filter,Magic,duplxer and TCXO , but sometimes it also will caused by wrong flash (e.g v3690 reflashed with v3688 data ) it will lost all MMI parameter . you have to do the trouble shooting for above items.

[Mod]

Thanks

It could be wrong unlocking.<br />I flashed it with V3690 flash, but problem remains.<br />Does this restore MMI parameter?

Its new phone but not unlocked by me.

Regards<br />Mod.