Hello, I have been having issues with my SGH-M919 doing a bootloop recently. Since 2014 I have been running CyanogenMod. Overtime it has been working flawlessly. Ocassionally I would make a backup, then proceed to flash the latest nightly rom. Going from CM11, CM12, then CM12.1. Over the past month, or month and a half, I have been experiencing radio issues. The modem would fail to have a decent signal, or I would get no data, and wifi, and/or airplane mode would fail to enable or disable until reboot. Recently, I had notice a conenction issue just a few days ago, and after reboots the radio would fail to initialize. I recieved a call, and it rebooted. So fed up with radio issues I suspected a bad rom configuration. When I rebooted after backing up and flashing the CM12/1 05.14.2015 build, I got nothing but a bootloop. I tried restoring the backup but had the same result. I tried installing a previous rom build with same results. Cleared dalvid cache, and still got the same result. I ended up completely wiping the phone, all options under the wipe options under PhilZ Touch recovery. Upon reboot I was stuck in download mode. Eventually getting odin to repartition without a pit file, it failed using the only available stock rom I had available, odin failed and kies wouldnt cooperate AT ALL. I eventually found a PhilZ mirror cause the site keeps returning "invalidcust" on downloading. So I flashed the recovery and sideloaded the latest rom and got it to boot. After rebooting to install gapps, it worked, then afer setting up google play store, I had noticed I was not getting any data, and upon reboot, bootloop came back. The actual point of reboot/crash varies. Sometimes is hangs a few seconds at the samsung logo, then not even a few seconds after the bootanimation starts... it reboots. and at other times it stays around 8-10 seconds before a reboot. I suspect, faulty hardware, or I need to flash the stock rom to get the hardware to refresh properly.
Any help would be greatly appreciated.
Update:
Upon booting with USB cable connected to a power source, it boots properly. A few moments after unplugging, it reboots, then bootloops. So...Bad battery? Even though it shows it as being at like 70/80 %?
Any help would be greatly appreciated.
Update:
Upon booting with USB cable connected to a power source, it boots properly. A few moments after unplugging, it reboots, then bootloops. So...Bad battery? Even though it shows it as being at like 70/80 %?
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