OK. I found the problem. The filter between the housing and the loud speaker had some sticky hard stuff that was blocking the sound. I had originally blown out the filter with air and considered it clean, but on second attempt I actually took out the filter and inspected; that stuff would not come out with just air...needs some sort of solvent or soaking; I replaced filter (original might be cleanable but I didn't want to put in the effort and I had another from a defunct water damaged unit) and working flawlessly now.
My unit worked as it should when connected to computer but was screen stuck on "ok to disconnect" or "do not disconnect" or diagnostic mode. I happened to have another iPod Nano 6th I was working on so I took out the battery/logic board and moved it to the unit with the good flex cable; and it worked flawlessly. Likely, the switches went bad with some water exposure; or there was moisture stuck in there; I replaced cable since I broke the cable trying to expose it. So if reset and restore doesn't work, test the on/off volume, headphone cable. I wrestled with restore/reset for too many hours and searched internet for hours for solution with no luck, then solved it.
This was an easy and complete/successful repair without taking out the logic board. Just be careful not to completely take out the speaker assembly; just move it up enough to pull up the ribbon cable below it. For my replacement part, I used one from another phone so I did this twice.
Successful battery change but I did sever the cord/ribbon to the power/sleep button. As my iPad had been opened before at a repair shop, I think they put adhesive over the cord as the small section was stuck underneath the LCD, barely visible. So be careful not to put adhesive above that exposed ribbon/cord to the power/sleep button or the next time you open it up, it's severed.
Wow; that was incredibly easy. Toyota dealer service wanted $150 to repair this (on my 200K+ miles Corolla). Took me 15 minutes. I especially appreciate the instructions to soder and fix the actual clock; I would have replaced the part but your repair advice worked.
This was an easy and complete/successful repair without taking out the logic board. Just be careful not to completely take out the speaker assembly; just move it up enough to pull up the ribbon cable below it. For my replacement part, I used one from another phone so I did this twice.
Successful battery change but I did sever the cord/ribbon to the power/sleep button. As my iPad had been opened before at a repair shop, I think they put adhesive over the cord as the small section was stuck underneath the LCD, barely visible. So be careful not to put adhesive above that exposed ribbon/cord to the power/sleep button or the next time you open it up, it's severed.
Wow; that was incredibly easy. Toyota dealer service wanted $150 to repair this (on my 200K+ miles Corolla). Took me 15 minutes. I especially appreciate the instructions to soder and fix the actual clock; I would have replaced the part but your repair advice worked.