[Q] Samsung galaxy y pro duos GT B5512B - General Topics

Yesterday I woke up, my phone was off, when I called, he fought on the home screen and then he got caught in the robot screen and I can not do recovery ... I hold vol +, home and power and when it starts, the screen Home (with the name and model of the device) and then back to the screen, which appears an open box, an arrow pointing out where the robot has the android.
I've done as root, delete some app to the device, but this time it does not work. (I can not even connect it to kies).
Can anyone help me?

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[Q] Samsung Logo Splash Screen and Keeps rebooting

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Two days ago I got the official update of jelly bean 4.3 to my Samsung galaxy s3.Last night phone was dropped with in small height. Today morning I switched on the phone its worked fine. But at the evening suddenly my phone was restarted and Samsung Logo Splash Screen (Samsung galaxy S3 GT-I9300T) and Keeps rebooting. So I remove the battery and insert it after a few second. After that the phone worked fine and again the same problem happened.
if I remove the battery, phone switch off. And if I insert the battery again, phone switch on itself (without press power button) and keep restarting.
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S7 Edge stuck on samsung logo

Hello,
I have a problem with my samsung galaxy s7 edge. When I try to put it on the samsung logo appears for a second or two and then I see a black screen again, there is also written 'Kernel is not seandroid enforcing' in red letters in the left corner of the screen. Nothing seems to help, I don't know a lot of these android things, but I have been looking on the internet and i have tried a lot of things. First of all I've tried a hard reset (press and hold the power, volume up and home buttons), when I do this, I get the same screen as I put it on, but now there is 'Recovery is not seandroid enforcing' in the left corner instead of 'Kelner'.
Then, when I press and hold the power, volume down and home buttons and I click continue, my phone comes in download mode. I've seen a video about about a factory reset out of download mode so I thought there was still hope. The only problem is that I cannot connect my phone with my PC neither. My PC can't recognize my phone. I've tried to use different USB cables, I've installed USB Drivers on my PC, but nothing seems to help. I've tried to use ODIN, Smart Switch and Samsung kies, but they can't find my S7 Edge. There is also an option where you can enter the buildnumber and SN thing (idk) of your phone and I've tried that to. The only thing that happens is my phone who begins to charge and a sound on my PC that says that he is connected to a device, but he can't see him.
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https://forum.xda-developers.com/s7-edge

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Samsung S7 Stuck on Downloading Screen...

It is a samsung S7 smg930f stock Rom from Brazil, did not suffer any damage at all, but does not turn on anymore.
Does not respond to Power Vol+ Home buttons.
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