mmx a27 usb not recognized solution - GSM-Forum

sam rehmani · 02-27-2015, 13:29

i have a mmx a27 with pattern lock, when i connect with usb show usb not recognized, i solderd a cable direct to dp dm and checked for gnd and shorting but was normal. after all these steps no success.
can i connect the handset with rx tx please tell the procedure

sb99sameerkhan · 03-02-2015, 07:45

IMG_20150302_120921 - Download - 4shared - Sameer Khan

sb99sameerkhan · 03-02-2015, 07:46

sam rehmani brother check avery line charging pin try

anbuchelvansci · 03-08-2015, 06:18

Quote:

Originally Posted by sam rehmani

i have a mmx a27 with pattern lock, when i connect with usb show usb not recognized, i solderd a cable direct to dp dm and checked for gnd and shorting but was normal. after all these steps no success.
can i connect the handset with rx tx please tell the procedure

REMOVE BOTH DM AND DP PROTECTION DIODES
USE SHORT USB CABLE ( NO MORE THEN 1 METER)
REHOT USB SQURE IC
TRY WITH ANOTHER COMPUTER OR OS (SOME TIMES PC CAUSE PROBLEM)

02-27-2015, 13:29	#1 (permalink)
sam rehmani Freak Poster Join Date: Apr 2010 Posts: 264 Member: 1291708 Status: Offline Thanks Meter: 15	mmx a27 usb not recognized solution i have a mmx a27 with pattern lock, when i connect with usb show usb not recognized, i solderd a cable direct to dp dm and checked for gnd and shorting but was normal. after all these steps no success. can i connect the handset with rx tx please tell the procedure

03-02-2015, 07:45	#2 (permalink)
sb99sameerkhan Freak Poster Join Date: Jul 2013 Location: mumbai Age: 38 Posts: 183 Member: 1978625 Status: Offline Sonork: 100.1661449 Thanks Meter: 39	IMG_20150302_120921 - Download - 4shared - Sameer Khan

03-02-2015, 07:46	#3 (permalink)
sb99sameerkhan Freak Poster Join Date: Jul 2013 Location: mumbai Age: 38 Posts: 183 Member: 1978625 Status: Offline Sonork: 100.1661449 Thanks Meter: 39	sam rehmani brother check avery line charging pin try