8210 dead set problem

[ryumahon]

hi guys maybe somebody can help me with my problem

my client brought in a n-8210 complaining that the ear piece is not functioning (couldnt hear anything at all), so we check everything even the earpice itself was ok... so we tried cleaning everything to make sure that the contact is good....

but then after cleaning the sad part is... the phone wont power on.... we didnt touch anything...<br />we checked everything, but it seems that everything was alright. no short, the battery is good the contact is perfect... tried flashing it tx=0, even upgrading and downgrading it sitll tx=0.

can anybody suggest or teach me how to fix this damn problem of mine?????!!!!!!

thanks a lot guys!!!

<FONT COLOR="#ffff00" SIZE="1">[ 07 February 2002 02:20: Message edited by: boogerman ]</font>

[F C]

hi...

u got a bad time at that day <img src="smile.gif" border="0"> ..

any way check the on/off soldering....rehot that portion again..

<br />best regards<br />gohar <img src="wink.gif" border="0">

[F C]

hi...

one thing more check the cobba too-- and if possible try to reflow cobba, hagar, ccont....

may ur luck works....

<br />best regards<br />gohar <img src="wink.gif" border="0">

[ryumahon]

thanks for the help guys but still the phone is dead.... yeah i think i jst have a very bad day.... on that same day we also change the led of 2 6210 unit and lost its signal also but we manage to fix it.... but this 8210 never made it.... so i paid the client by changing board of another 8210.... very unlucky day i think.....

check the switch.. reflowed cobba and ccont but still no good guys....!!!! <img src="smile.gif" border="0">

[F C]

hi..

may times it happens that there nothin seems to be rong with the phone but still the problem persists-- <img src="frown.gif" border="0"> )

any way thats our life in gsm !!

<br />best regards<br />gohar <img src="rolleyes.gif" border="0">

[Williamcwy]

Solution:<br />1. Try to rehot CCont (Power IC)<br />2. Try to rehot flash IC.<br />3. Try to rehot rom.

If still dead, there is CPU problem.

P/S: the earphone problem solution is.... rehot Audio IC.

[ryumahon]

almost did everything as everybody suggested... but still no good..... well i think the phone was meant to be dead.....

sir chin i did everything you told me but the problem is still the same....

anyway thanks for the help guys!!!!! <img src="wink.gif" border="0">

[M@RTY]

is phone drawing any current when you try and power up :-<br />no = check/clean power contacts<br />yes = reflow hagar,ccont ic

it sounds if you dry jointed an ic when opening/closing phone.

[hanoon]

try to pass a thin screw on the LCD side upper ic while batt is joind and check vibration function and led light and post here..

good luck!

[gsm_boy]

[quote]Originally posted by hanoon:<br /><strong>try to pass a thin screw on the LCD side upper ic while batt is joind and check vibration function and led light and post here..

good luck!</strong><hr></blockquote>

Yes post the results of screw... (Smart move Hanoon... i m happy <img src="smile.gif" border="0"> )<br />Mr. Boogerman u should repair it in a proper way.. not to just rehot COBBA, CCONT, HAGER CPU Blindly... i mean people say rehot it and u rehot it... man may b while cleaning pcb one of resistor and capacitor is out... So Rehot everything is NOT A PERFECT SOLUTION...

DO it in proper way... Give me yr ID to catch u on-line.. we will try to do it in proper way...<br />(Sorry guys for not good words)

Good Luck to all and me too

<img src="smile.gif" border="0"> <img src="smile.gif" border="0"> <img src="smile.gif" border="0">