[Windows Phone 8 Q&A, Help & Troubleshooting] Luxon:
Howdy,

Lately I started experiencing access issues with the phone. One of these is the screenshot issue. The screenshot gets taken, although the phone says Couldn't take screenshot and saves the screenshot. The screenshot does not get shown in the Photos app like the app can't access the file.

Here are all of the access issues I experience, I believe they are connected all together and have the same root cause.

1. Whenever I press WindowsKey+Turn off button to take a screenshot, the phone says Saving to Screenshots... and then Couldn't take screenshot. The screenshot does not get saved to Screenshots folder. If I check this same Screenshots folder via Windows Explorer, it shows the taken screenshot is there

2. No camera app, including the built-in one, can save the taken photo. Whenever I start the camera and press the Camera button, the Camera app either disappears as if it crashed (and Start screen is shown) or the Photos app is shown instead of just taken photo. Checking the Camera roll section in the Photos app does not reveal the photo as if it wasn't taken. If I check this same Camera roll folder via Windows Explorer, it shows the taken image is there!

So the phone does take photos and screenshots but can't read them! Why?

3. Most of the time Photos app fails on start. You tap photos, it shows Loading... and then the app closes and Start screen gets shown. The other time it shows Loading... then Resuming... then Loading... again and does that multiple times. Sometimes it starts well but shows only old photos and screenshots that were taken before I started experiencing issues with taking screenshots and starting system apps.

4. Often so the Phone storage app available in Settings doesn't start either and closes after showing Loading... Sometimes it starts with no issues.

5. Music app fails to start every now and then. If I am being preserving, the app starts after multiple attempts to launch it. When it starts, it does not return to album view when you click Play on a song in an album. The app just freezes.

6. Finally, my System section in Settings|Phone storage|Phone now shows 4.29 GB (!) although it consumed 2.12 just before I started experiencing these strange issues. Seem like it has been flood with dumps and logs.

It appears the issues arisen when I replaced my 32GB Transcend UHS-I QSDXC card with a 64 GB by µSDXC from Sandisk and attempted to synchronize photos via Zune application and both WinRT and Desktop versions of Windows Phone apps.

More detail:

1. I interop-unlocked the phone and it worked for a while.

2. My 32 GB SD card ran out of memory and I replaced it with a 64 GB SD card.

3. The 64 GB SanDisk SD card appeared incompatible with Samsung ATIV S and looked as if it had been dismounted every now and then. The phone had been rebooting every 10 minutes or like and CPU was heating high.

4. I removed the 64 GB card and started the phone without the card. It worked well. The phone stopped heating and rebooting ever since I removed the card.

However, I noticed that I no longer can start the Photos app. Moreover, Phone storage also was failing start and Camera app did not make screenshots and photos.

5. I inserted the 64 GB card to my wife's Nokia Lumia 620 and it worked fine there. I put the 32 GB card back into my Samsung ATIV S but access issues are still there.

How do I fix this? Any clue is highly welcome.

I remember in Windows Phone 7.0 days, MSFT was joining SD card File System with the one on phone's memory. Could it be that storage array has been broken when I replaced the memory card?

Also could it be that something screwed with bootstrap (the phone is interop-unlocked and has been boot strapped before it's been unlocked).

Once again, the phone is developer unlocked and interop-unlocked.

I plan to hard reset but am worrying of getting my phone bricked. What if re-imaging or whatever the phone does when it resets itself (I assume it applies a WIM file like Windows 8 does it on PCs)?

Seems like inserting 64 GB SanDisk screwed the phone.

Important note: I did NOT use remove SD Card button on Settings|Phone storage|SD Card when replacing the cards. It just felt no sense to do that provided that I had switched the phone before I replaced the card.

I appreciate your help. Don't want contact Samsung service; my phone wasn't produced for the country where I live.