Sixth iteration of Apple iPhone, announced on September 12, 2012. Repair of this device is similar to the previous models, requiring screwdrivers and prying tools. Available as GSM or CDMA / 16, 32, or 64 GB / Black or White.

3109 Questions View all

Modem Firmware Blank And No IMEI.

Hello Everybody in this great place. Please I am in serious need of your help, iPhone 5 was working in good condition before the mystery. It does not fall to the ground, the phone just went to stuck on searching where the network bar is. Things that I had done to help myself... I have set the time and date to the accurate, i have remove the battery to re-clip, adjust the time and date to correct one, i have reset the network setting on the iphone5 menu but searching still but the sad thing for me now is that the phone shows BLANK Modem Firmware and shows no IMEI at all, I am so much afraid to restore this phone on iTunes because i would not want the phone baseband Chip to damage because i cannot get the babaseband to replace here...

please I need advices about what steps should be taking or what i have to do to make my friends iphone5 work again with Sim network function.

Thanks in advance.

Answered! View the answer I have this problem too

Is this a good question?

Score 25

Comments:

Did you get your problem fixed?

by

Hello teacher . 1 iPhone 5 baseband I'm the problem, and with Ryval the phone has been turned off.

Knyd.mmnvn's help

by

Add a comment
Black Friday
Broken doesn't stand a chance.

4 Answers

Chosen Solution

I hope the baseband itself is not damaged as well because replacing the baseband chip is a lot harder than it already sounds. Not just the component sourcing and hardware repair procedure, the system main storage has to be reprogrammed as well to pair the baseband IMEI with serial number. It is very difficult and future upgrade may fail.

Usually it's just a power issue, the baseband power supply part is damaged. Find the broken part, replace a capacitor or inductor, or baseband PMU at most.

Was this answer helpful?

Score 6

Comments:

thanks for your reply, i don't know whats wrong but i wrote a bigger message here early in the morning totally but it disappeared i cant understand why, i am new person here and i am new to hardware repairs most especially apple but i gather info from internet since i come from where there is no apple care center...

i have not even touched the iphone5 since morning because an expert engineer promised to help out with it but its sad for me he failed and now i am on my own on this phone and i dont want to do anything stupid, i dont know the terms you used and i so confused right now because the phone in question still show the bluetooth addres and wifi address correctly but the IMEI doesnt show and the modem firmware is BLANk...

pls help with maybe picture or schematic or something that can put me on the right vivid lane on this iphone issue because thinking about how it all happened gives me headache. your further help would be appreciated... if you skype my id is oluromeo... please reply.

by

Sorry i don't have repair data for iPhone 5. Maybe you can find a technician online and mail your phone to them.

by

Thanks for you reply, can you recommend an online technician or any link you can trust will be appreciated... thanks again.

by

Thanks. Very helpful :)

by

where the power supply part can you send a photo for th coils or capacitor and how i know the input for this ic ???for iphone 5s

by

Add a comment

i have the same problem. it happened 3 days ago. i've done everything. reset, upgrade, sim in sim out, all the thing that i can possibly do by my self...

finally i went to apple service centre. they said it is about a hardware issue. they should change one part of the chip in the firmware. it costs 120 USD to fix it. and my iphone has to stay there for 2 days...

so in my experience theres nothing to do except ask someone to replace the chip.

i have iphone 5 with ios 8.3.

Thanks.

Lisa

Was this answer helpful?

Score 3

Comments:

Were they able to repair the phone for $120?

by

Add a comment

Hello,

I'm in this case ! The only thing to do is Change the Motherboard INFORTUNATELY !!

Was this answer helpful?

Score 1
Add a comment

i did fit it just open it and heat it up like the 4s no wifi solution and it will show imei back dont know how long it will show but it worked for me

Was this answer helpful?

Score 1
Add a comment

Add your answer

Oluromeo will be eternally grateful.
View Statistics:

Past 24 Hours: 46

Past 7 Days: 390

Past 30 Days: 1,338

All Time: 78,165