Help Needed - Galaxy Note Pro 12.2 Q&A, Help & Troubleshooting

I replaced motherboard with a new one. No software installed totally blank. I downloaded ogdin/Twrp installed md5. Did a reboot and all I am getting is a black screen on reboot. What am I missing

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[Q] System clock failing and deleting all contacts and settings

I am having a problem with my phone. My phone goes into a state where the initial splash screen keeps on loading and when I restart my phone all of my contacts are deleted as well as the messages and settings. I tried to flash it with the same FW 2.3.4 a couple of times but it didn't fix the problem then I flashed it with 2.3.6 but the problem still persists. This happens most of the time when the phone is in idle state I wasn't able to grab the process which was failing but yesterday it went into that state by failing two process it forced closed System Clock and maps. Can any one help me how can I fix this issue.
bad luck
you need to go to sumsung support ,, where they should either replace the main PCB or replace the handset
check this thread
http://forum.xda-developers.com/showthread.php?t=1324452

Camera doesn't work anymore help!!!

I had a crash yesterday when my phone screen just blanked out while it was on charge and was getting very hot. After unplugging it, i rebooted the phone and after the initial logo, no screen was coming on. I could feel the haptic feedback but nothing on the screen. I again rebooted nothing, luckily i got into recovery by power+3D+vol down and restored old image.
But since that time i've tried the following methods:
1. Installed new image
2. Factory reset stock phone and camera still hangs.
3. Software UPdate via LG software update tool and clean fresh install.
4. Emergency phone restore as the boot got corrupt one time.
5. Restored using previously working image(s). tried 2 separate dates and roms.
Nothing works for the camera and doesn't take picture even by pressing 3D button.
EDIT: Update. Managed to finally get the camera working after lot of clean installs of CFW. Only prob is when i click storage and press SD Card option it hangs. Tried many times and even on another ROM but it just hangs when switching storage to SD CARD.
Is there a hardware issue or a software one?
Any idea or tips that could help me restore my camera?

[Q] Help! I tried to root my tablet and now I seem to have broken it -- it won't boot

Alright, so yesterday I tried to root my tablet (Samsung Galaxy Tab 3 10.1 Wifi) yesterday by installing TWRP and then loading the Superuser zip found in their link in the play store. It worked fine--I had root access and all was going fairly well. I then tried to make a small tweak to the build.prop file by changing ro.build.version.codename from REL to L.
When I rebooted to apply that change, I could not start up, so I did a factory reset (not a big deal, no essential files on there). It then booted fine, but when I reinstalled/updated all my apps, the Google services were crashing like mad. So I reverted the build.prop file back to REL and again it would reboot, so I did another factory reset and all was good; the Google apps were fine.
Well I was still rooted and I wanted to take advantage of all that time I spent doing it, so I downloaded the bootanimation zip found on this thread and replaced my bootanimation.zip that was already on there. I restarted to see the animation, and this is when the real nightmare started happening. I could not boot now at all.
I did another factory reset, and still it wouldn't boot. I then used TWRP to do a full reset, and still nothing. I did an advanced reset and somehow managed to delete the operating system files (I have no idea how), causing TWRP to say that no operating system was installed. I still couldn't boot, of course.
Finally, I decided I had had enough of this rooting ****. I searched all over the internet looking for a North American version of my stock ROM, and finally found one posted on this forum post. I wouldn't normally trust any random file, but I was getting desperate here. I used Odin to flash that ROM, and there were no errors. Now when I go into recovery, it gives me stock and not TWRP, so I know that was probably successful.
However, I still cannot boot. I get stuck on the screen that says Samsung Galaxy Tab 3, which sometimes goes away and then comes back. I can't send it in for warranty, because it still says "custom" in the recovery mode. How can I fix this? any ideas?
I really want my tablet back :crying:

Booting issue

Hi, I bought a used Nexus 5 and it has been causing quite some problem when booting. I flashed Cyanogenmod in it and it works fine for a few days. After that it keeps having the same problems in the following order:
- It would restart on its own, sometimes some random app will fail functioning (it's never the same app).
- Turns off on itself without restarting. Can still be turned on normally.
- From there it gets worse and start bootlooping. On CM it loops around the part where it initialises the apps. On stock its the colourful stuff that happens right after the Google logo.
- Finally it just gets stuck in boot. On CM it's stuck where it initialises apps while for stock it turns off right after the Google logo appears.
I have tried the following:
- The persist partition fix described at https://forum.xda-developers.com/google-nexus-5/general/guide-to-fix-persist-partition-t2821576
- Cleaning the power button and made sure it wasn't stuck.
- Re-flashing CM, did a checksum to make sure the files are okay
- Went back to stock, did a checksum too.
It's a used phone so I have no idea what it went through in the past. Anything I can do to fix it?
Try running the phone with a stock ROM without root. If the problem still happens, it's probably a hardware problem.
It didn't have root but I flashed a factory image (plus another round of factory reset too) and even locked the bootloader + reset the tamper flag this time. It's working fine now but the problems normally start a few hours/days later so I can't be sure at the moment.
If it does fail again which hardware is the one with the problem? The warranty's long gone so will it be easy to buy a new part and replace it myself?
The cheapest solution may be to buy a used Nexus 5 with a smashed screen and working internal components to swap out components.

[Resolved] SuperSU Update Then Stuck on CM logo

All was well until this morning I got a notification that SuperSU needed updating. I said yes, and it gave me two options: 'Normal' and TWRP, or something similar. I went for normal. After a few moments a message appeared saying that the update was successful and that I should reboot my phone. I clicked reboot and now the device gets to the animated CyanogenMod logo and stays there forever.
I booted into recovery (by holding the volume down button at the same time as the power button), and from the main TWRP screen have backed up the phone (and copied the contents to an external device) and tried clearing the cache. This has not helped.
Can anyone advise what I could try next please?
UPDATE: Fixed it . I found a copy of UPDATE-SuperSU-v2.65-20151226141550.zip in the Download folder of the phone's internal storage, installed that using TWRP and rebooted the device. It has started fine, with the only strange thing being that SuperSU no longer appears in the Android Apps Drawer. Any idea why this might be? Is this likely to be a problem? I'm not sure I fully understand what SuperSU really does.

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