iphone 4 error 21 - GSM-Forum

fum · 09-01-2015, 16:14

i got iphone 4 on apple logo.. i try to restore it in recovery mode. i got error 21. i change battery. change pc change firmwares. try to update through itunes nothing works...iphone stuck on connect to itunes...what to do...

fum · 09-04-2015, 19:43

I did it...error 21 by edit host files

BiNaR4 · 09-06-2015, 16:14

This is baseband error, reball all modem. First U8_RF, if not help - U4_RF & U9_RF to.

fum · 09-09-2015, 18:55

Quote:

Originally Posted by BiNaR4

This is baseband error, reball all modem. First U8_RF, if not help - U4_RF & U9_RF to.

Bro i do it by edit host files...not by hardware

09-01-2015, 16:14	#1 (permalink)
fum Freak Poster Join Date: Sep 2014 Location: gsm forum Posts: 189 Member: 2263030 Status: Offline Sonork: 100.1659104 Thanks Meter: 23	iphone 4 error 21 i got iphone 4 on apple logo.. i try to restore it in recovery mode. i got error 21. i change battery. change pc change firmwares. try to update through itunes nothing works...iphone stuck on connect to itunes...what to do...

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09-04-2015, 19:43	#2 (permalink)
fum Freak Poster Join Date: Sep 2014 Location: gsm forum Posts: 189 Member: 2263030 Status: Offline Sonork: 100.1659104 Thanks Meter: 23	I did it...error 21 by edit host files

09-06-2015, 16:14	#3 (permalink)
BiNaR4 Junior Member Join Date: Jul 2014 Location: Novosibirsk Age: 33 Posts: 13 Member: 2223316 Status: Offline Thanks Meter: 2	This is baseband error, reball all modem. First U8_RF, if not help - U4_RF & U9_RF to.