Iphone 4s keeps restarting when charged.

I seem to have this problem as well, and only after iOS 8.3. Repeatedly reboots while charging/connected to Mac. My workaround which seems to work: ensure the screen is turned ON while charging/connected. Go to Settings>General>Auto-Lock, set to "Never". Then turn down the brightness all the way to save your battery power. You can revert to your original Auto-Lock setting when done charging. Hope this helps. We need a fix for this annoying bug asap.

Hi bperez1995, a quick update -- I resetted my 4S settings and it has been stable for a few days now when charging/connected to the computer. Try the following (you won't lose apps or data, however your phone settings will revert to the default): Go to Settings>General>Reset>Reset All Settings. This seems to have resolved my infinite-reboot problem.

Something else to try. Turn off Field Test Mode (the ability to see signal strength in numbers rather than dots). Seems to have worked for me. You can google iphone Field Test Mode for more information or go to the phone dialer, enter *3001#12345#*, and hit call. This will enter Field Test Mode. Hit the home button to close. This turns of the signal strength numbers. For me it appears to have fixed the restarting when charging problem.

so far it works for me too,

Just a quick update -- Tarheel1999's method seems to have resolved it for my 4S (at least for now, it's been 5 days). FYI, the "Reset All Settings" option which I posted earlier worked for maybe 7 days, then the problem came back -- so it wasn't a permanent fix.

Tarheel1999 Suggestion Not working in my iPhone 4s ..

mine still working ok with that Tarheel1999 idea. thankx. it has been now 12 days and counting.