iPhone 6 Plus Searching No IMEI No Modem Firmware - GSM-Forum

short_toground · 09-15-2017, 00:49

Originally water damaged and boot looping.

Speaker amp ic reballed and shorted cap removed.

Phone boots now but searching and no modem firmware/IMEI when dial *#06#

Things tried:
Replaced BB_pmu
Reballed BB CPU

Same issue. No shorts anywhere on baseband side

Any suggestions?

peak_mobile · 09-16-2017, 03:39

Check VREG_L13_PP_LDO13

U_PMICRF
C3401_RF

U_BB_RF
C3420_RF

short_toground · 09-16-2017, 03:54

Quote:

Originally Posted by peak_mobile

Check VREG_L13_PP_LDO13

U_PMICRF
C3401_RF

U_BB_RF
C3420_RF

All voltages from U_PMICRF come up for a second then drop to 0v and try to come up again and keeps repeating then stops.

No shorts measured anywhere

ansari123 · 12-03-2017, 06:07

Quote:

Originally Posted by peak_mobile

Check VREG_L13_PP_LDO13

U_PMICRF
C3401_RF

U_BB_RF
C3420_RF

same with me no voltage on these caps i change pm8019 but still same no short ???

valerfankam · 12-05-2017, 20:03

reballing basebande bro

09-15-2017, 00:49	#1 (permalink)
short_toground No Life Poster Join Date: Jul 2016 Posts: 536 Member: 2598526 Status: Offline Thanks Meter: 52	iPhone 6 Plus Searching No IMEI No Modem Firmware Originally water damaged and boot looping. Speaker amp ic reballed and shorted cap removed. Phone boots now but searching and no modem firmware/IMEI when dial *#06# Things tried: Replaced BB_pmu Reballed BB CPU Same issue. No shorts anywhere on baseband side Any suggestions?

09-16-2017, 03:39	#2 (permalink)
peak_mobile Junior Member Join Date: Feb 2013 Location: Thailand Posts: 16 Member: 1888732 Status: Offline Sonork: 100.1650794 Thanks Meter: 2	Check VREG_L13_PP_LDO13 U_PMICRF C3401_RF U_BB_RF C3420_RF

12-05-2017, 20:03	#5 (permalink)
valerfankam Crazy Poster Join Date: Jul 2014 Posts: 52 Member: 2216247 Status: Offline Thanks Meter: 6	reballing basebande bro