Develop Bugs

[Q] Need help removing a tab (see screenshots)

Hi guys,
Just got my note II today
I've owned the SII and SIII so I am familiar with using androids already,
strange problem I'm having. I've got this blue tab that remains on the screen constantly,
its a folder for app shortcuts. I can't figure out how to remove it. Does anyone know how?
cheers
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Pree back key for 2s, to enable it do the same. This questions has been posted many times before

thanks for the fast reply , I didn't know what to type to search for this query.
Got nothing from googling...

[Q] Chinese Galaxy Tab S Help

Hello
My girlfriend bought me a Galaxy Tab S from china, she gave it to me in the UK now due to google and several services being banned in china i cant get google play to work as it force closes whenever i open it. Do i need to root and flash UK firmware on it and if so can someone tell me exactly which one as i dont want to break it, i have attached a screenshot of my device firmware
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Thanks

see SM-T700 as a model there... i think this is the suitable one. you dont need to root it actually because you'll be using odin to flash official firmware.
http://www.sammobile.com/firmwares/3/?download=32716

Screen Mirroring is all greyed out

OK Heres my problem and I am wondering what Bright mind here on XDA can help me fix this:
I have a Galaxy S3 (AT&T) and I have stock but rooted Android 4.4.2 with a kernel version of 3.4.0-1514807 and My Screen Mirroring is all greyed out, unable to do anything.
I would like to know how to get this back to working condition again. Please don't suggest Apps. Most of the Screen mirroring apps ive tried are either Ad ridden or they do not work. I just want my regular phone functions to work as intended.
And if it has anything to do with this I no longer have Samsung Knox. It went away when I rooted my device.
Here is a screenshot of what is the problem:
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Anyone?

T-Mobile can't unlock my old 10.1. Had to send request to Samsung. Unit mine and paid. Unlock help?

I own my tablet, and have had it since 2014. Ran it on Wifi for past 3 years. Now need to unlock it to put on my ATT account. t-Mobile guys are great, but couldn't do it. Said files were too old. Had to send my request to Samsung. Can't I just do this myself?

I have restored my device which is a Samsung Galaxy Note 10.1 edition 2014 by using the settings>restore method. However, the screen is not going on, staying constant as i showed with photo below. I have opened the case of tablet, i have extracted the battery, and connected it again. No way, it does not continue, stays as constant like the photo. Is there anyone who can provide a solution?
Best
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Unrooting Redmi Note 8 Pro (Help Requires)

I need an opinion from anybody who has faced the same situation. I had rooted my phone last year by following a youtube video the guy installed TWRP and Magisk from their..
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It's the current version and the below update is available
Now im just confused that if i update it directly is there any chance of brick? One more thing i think my phone is locked on it's own feels like im trapped can anyone help please i want to uninstall the custom recovery and update my phone because now it feels like it's half rooted and facing bugs..