SamsungGalaxy S4 stuck on samsung logo Yesterday I installed the newest software update for the Samsung galaxy S4(GT-19505). At first, the phone was stuck on a loop of the update 'installing' to 100%, turning on then switching off and repeating. I did a battery pull and removed my SD card. when i went to switch on my phone and it was stuck on 'android is updating. i left it and fell asleep. this morning i switched it on and it started as normal but then froze and got stuck at the glowing 'SAMSUNG' logo. i have tried using the power+up+home to and cleared the cache partition but that did not help. i have also taken out and replaced the battery many times. Samsung Kies also does not recognise my phone. How do I fix this problem? I am a complete newbie when it comes to phones and the technical side of them and would prefer an easy guide as to how to fix my problem/what the problem is. I would also REALLY REALLY REALLY prefer not to do a factory reset and wipe all my data.
Having experienced booting problems before, it's usually suitable to simply perform a battery-pull as you've done. The state that your phone is almost certainly 'recoverable,' but may require re-flashing the firmware (i.e. potentially performing a factory reset).

Have a think about it, and possibly wait for any more input from the community. If there is no more useful feedback, I'd advise downloading a copy of the official firmware for the device (should be pretty simple to find on Google). Download ODIN3 (http://odin3.en.lo4d.com/) (a tool used for flashing ROM's to Android devices) and have a read up on how to use it.

To put your phone into 'download mode,' reset the device and hold [POWER] + [HOME] + [VOLUME DOWN]. It should say "Downloading.. do not turn off target" or similar if performed successfully. Your computer should pick up the device and it is now primed for flashing.