Baseband Chip broken, error -1. Need knowledge on replacing chip

Hi all after some extensive research on the subject (constantly searching for signal ) you read all the forums and hey some will say it's an antenna problem so you replace it with no joy others say it's a time and date issue fixed with a manual edit yes it can be tedious as it will skip forward or back 10 years if you try to go to quick. Or someone else said replace the SIM card reader anyway you've done all of the above and still nothing. here is what I found!!start here! If you've ever removed a SIM card before you will notice that almost immediately the phone says no sim! But with a broken or damaged ic/baseband chip,without SIM card inserted, you will have notice that your phone Never says no SIM card and when you do put one in it's still searching only to continue forever. So then after all of this you think hey I'll just update with iTunes wrong again because hey presto error-1 so then more research and apparently it's the baseband chip causing the issue the whole time just had a quote of $85aus for parts and labour to repair it. If your thinking of trying to reflow it yourself or place it in the oven for 20 mins @180. consider the fact that for less than $100 you can have it repaired properly and a Pretty much new phone again if your still wanting more check out micro soldering or baseband chip repair on YouTube then decide yourself. Hope this helps and saves everyone else from the same headaches.

i had the very same problem. after a water damage my phone was searching for service all the time and could not even tell if there was a sim present or not. restores aborted at firmeware update with error -1. some rare times with error 23.

via redsnow i was able to reinstall and activate ios 5.1.1. wifi was working for a few hours - but baseband info was missing and still no service. 6.1.3 update without baseband worked but phone got still no service.

since a phone without service was useless to me, i took the fun and disassembled it and heated the logic board alone in an oven at 180 celsius degree for about 20min.

after that the restore was flawless and the phone is working! i am not joking!

hope that helps.

If you have a hot air station you can try reflowing it, his worked for me.

Just heat up the baseband chip and maybe it will work after that.

Let me know!

Same problem here with my iPhone 5c.. restore error (-1)

After trying everything with no succes, I put the iPhone between a pillow and my laptop, which is pretty hot underneath, I would say around 60'C (more or less)

The iPhone got hot pretty quick and then I retried the restore with succes! I even had some cell reception after I replaced the SIM card and managed to make a call..

I'm not sure if the baseband issue will remain fixed for a longer term but at least there's some improvement.

Hope this helps..

Cheers, Bernie

Hi josh....!! i need your hand to solve this issue my mail id '"" invention_s@yahoo.com ""

Josh thank u in advance

:)

The best bet is to reflow with hot air gun, the chip may have a dry joint , with flux and check that the components adjacent to the chip become shiny almost melting, then cool it, without the metal shield attached to the frame and test, if you get a signal then you do not have to change the chip. It is quite cumbersome procedure to replace the chip but most of the time just reflowing does the trick.

Mushtaq

bro go karol baag u ll find the solution there they ll take 1000 or 1500 rs from u

My suggestion is to heat the base band chip remove it, have it cleaned on the board re-ball the chip and solder back and it will work, or short cut, just heat the chip and apply liquid flux applying liberally. advise which of the methods worked.