M620 functions only with charger - GSM-Forum

Adolf1944 · 01-21-2011, 12:58

I have M620 with a charger, runs good......
but when I put the sim stop working (The customer currently runs, but when he put sim power off)
I tried to flash it more than 10 times in different version
with HWK (rj45 and USB ) +USTpro and with optiflash but the same problem
Now I want to be traced back to the customer as stated currently runs only without sim, but the problem that does not power on onlywith charger or box
Is there a solution or Firmware
Phone is M620 and is not M620n

sazr · 01-21-2011, 21:28

change the battery may solve your problem

idrish911 · 01-22-2011, 06:02

Hello.
Friend its not software fault its hardware fault
change battery fully its volt...3.60 to 4.20

first change ur belt{rebbion}
i think u change ur belt it work 99%
but same fault than check sim track
near side of sim socket check big size of capacitor if there is shorting in capacitor than remove that capacitor......
Same fault than it p.f.o.{power frequency oscillator } fault
than normat hit on pfo than check...ur cell........

01-21-2011, 12:58	#1 (permalink)
Adolf1944 Major Poster Join Date: Dec 2010 Location: germany Age: 33 Posts: 43 Member: 1469917 Status: Offline Thanks: 82 Thanked 44 Times in 18 Posts	M620 functions only with charger I have M620 with a charger, runs good...... but when I put the sim stop working (The customer currently runs, but when he put sim power off) I tried to flash it more than 10 times in different version with HWK (rj45 and USB ) +USTpro and with optiflash but the same problem Now I want to be traced back to the customer as stated currently runs only without sim, but the problem that does not power on onlywith charger or box Is there a solution or Firmware Phone is M620 and is not M620n

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01-21-2011, 21:28	#2 (permalink)
sazr No Life Poster Join Date: Nov 2005 Posts: 950 Member: 203352 Status: Offline Sonork: 100.1609650 Thanks: 201 Thanked 228 Times in 160 Posts	change the battery may solve your problem

01-22-2011, 06:02	#3 (permalink)
idrish911 No Life Poster Join Date: Jan 2011 Location: INDIA>GUJARAT Posts: 550 Member: 1497850 Status: Offline Sonork: 100.1601368 Thanks: 140 Thanked 298 Times in 124 Posts	Hello. Friend its not software fault its hardware fault change battery fully its volt...3.60 to 4.20 first change ur belt{rebbion} i think u change ur belt it work 99% but same fault than check sim track near side of sim socket check big size of capacitor if there is shorting in capacitor than remove that capacitor...... Same fault than it p.f.o.{power frequency oscillator } fault than normat hit on pfo than check...ur cell........