No signal after changing battery on iPhone 3GS
My 3GS was shutting off whenever it dropped to 60-70% battery life for a few months. I'd have to plug it in to reboot and then after a few minutes it would tell me I had < 5% charge or whatnot. It got worse and would die constantly in the 95% range, but would still reboot sometimes with some battery left, but usually only successfully if I was plugged in. So I figured it would be cheap/easy to try to replace the battery on it.
I, regrettably, tore into the thing pretty aggressively and cannot get a carrier signal at all after reassembling it. At one point, I was able to occasionally get a single bar of service for a matter of a couple seconds, but for the most part, just no service at all. Now I can't even get that much.
In the numerous attempts to reassemble, I seem to have messed up ribbons 6 and 7. They won't stay connected, which is why I have the soldered wires shown here http://i1211.photobucket.com/albums/cc42... (the left one and the lower right one connect the ribbon to the terminals).
I'm sure that ribbon 6 is the least of my worries, though my wifi only works within 2 rooms from the router and I don't think my GPS is working, or camera for that matter, but I'm most concerned about getting my carrier signal back. So this picture illustrates what I currently have setup around ribbon 7 http://i1211.photobucket.com/albums/cc42.... You can see the wire on the right connects the ribbon to the terminal. The other wire was something I just added in a futile attempt which attempts to bridge the antenna (which is also terminal 7, right?) to the tab that forks up to connect to the bezel.
I'm at a loss as to what to try. I've made sure the 2 tabs make a good connection to the bezel casing and also from what I can tell, the two inductors next to the antenna (where ribbon 7 connects?) seem to still be in place, The extra wire was an attempt to try to bypass those in case I screwed them up, based on what I read in http://www.mauron.net/iphonerepair/ which seems to be more focused on the 3G model.
Can anyone provide some help on what to try? Or have I tinkered too much that all hope is lost? I can provide additional photos if needed.
Thanks so much!
Updated with photos of trying to solder the resistors and traces as suggested:
Resistors: http://s1211.photobucket.com/albums/cc42...
http://s1211.photobucket.com/albums/cc42...
Trace: http://s1211.photobucket.com/albums/cc42...
Resistors round 2 (removed solder and resistors came out doing so): http://s1211.photobucket.com/albums/cc42...
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Thank you for the response pollytintop. I just now tried replacing the full lower dock assembly including new antenna, but still have no luck getting any signal. I removed all extra wires and solder I had previously used to make a good connection. I still can't get the 6 and 7 ribbon cables down on the pads and right now have them taped down with electrical tape. I even tried running the phone with the case slightly open so I could force ribbon 7 into making contact but still no signal. I'm willing to try the method of scraping off the cover over the trace, but need some more guidance on how to do that. I'm relatively new to these repairs. Unfortunately my local iphone repair shop won't attempt a repair either. If anyone is near Orlando Florida and might be able to help, please let me know. Or if anyone else has suggestions, I'm not afraid to try. Thank you!
por furrycheese