T20 don't power on? - GSM-Forum

insidebga · 12-27-2002, 15:53

Hello,

I have here T20 that dont power on,
only green led blinks one time, and nothing more. I can write eeprom and unlock, but dont help, must be a hardware problem
allredy changed power IC -stil nothing?
...any idea?

VELIKI · 12-27-2002, 22:33

multimode adaptor change

GSM Coolhawk · 12-28-2002, 00:45

@insidebga

Just reflow you MMCC "Multimode Mode Converter Circuit" this is just under the CPU.

Be aware if you change the MMCC you'll have to recalibrate your phone with test software from Ericsson called "EFRA"

And don't ask me where to get EFRA, cause I've asked in this forum, but no one seems to know this ???? It's equiliant to Wintesla for Nokia.

Regards

insidebga · 12-28-2002, 18:51

Very interesting, also i have A2618s 2pcs. with the same problem...
Thanks Coolhawk

.::AkhavanGSM::. · 12-29-2002, 18:03

hi for working soloution Contact me .

GSM Coolhawk · 12-29-2002, 20:13

@GSMLight

Why don't you share your "Working solution" here on the board !!! or at least explain shortly what this working solution of your emplies ?

Regards

12-27-2002, 15:53	#1 (permalink)
insidebga Freak Poster Join Date: Mar 2001 Location: BGA Posts: 334 Member: 3858 Status: Offline Thanks Meter: 2	T20 don't power on? Hello, I have here T20 that dont power on, only green led blinks one time, and nothing more. I can write eeprom and unlock, but dont help, must be a hardware problem allredy changed power IC -stil nothing? ...any idea?

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12-27-2002, 22:33	#2 (permalink)
VELIKI No Life Poster Join Date: Nov 2002 Location: slovenia Age: 48 Posts: 589 Member: 18028 Status: Offline Thanks Meter: 20	multimode adaptor change

12-28-2002, 00:45	#3 (permalink)
GSM Coolhawk No Life Poster Join Date: Dec 2001 Location: United Arab Emirates, Dubai Age: 52 Posts: 1,269 Member: 7751 Status: Offline Thanks Meter: 74	@insidebga Just reflow you MMCC "Multimode Mode Converter Circuit" this is just under the CPU. Be aware if you change the MMCC you'll have to recalibrate your phone with test software from Ericsson called "EFRA" And don't ask me where to get EFRA, cause I've asked in this forum, but no one seems to know this ???? It's equiliant to Wintesla for Nokia. Regards

12-28-2002, 18:51	#4 (permalink)
insidebga Freak Poster Join Date: Mar 2001 Location: BGA Posts: 334 Member: 3858 Status: Offline Thanks Meter: 2	Very interesting, also i have A2618s 2pcs. with the same problem... Thanks Coolhawk

12-29-2002, 18:03	#5 (permalink)
.::AkhavanGSM::. No Life Poster Join Date: Jun 2002 Location: Iran Age: 47 Posts: 1,082 Member: 12724 Status: Offline Thanks Meter: 30	hi for working soloution Contact me .

12-29-2002, 20:13	#6 (permalink)
GSM Coolhawk No Life Poster Join Date: Dec 2001 Location: United Arab Emirates, Dubai Age: 52 Posts: 1,269 Member: 7751 Status: Offline Thanks Meter: 74	@GSMLight Why don't you share your "Working solution" here on the board !!! or at least explain shortly what this working solution of your emplies ? Regards