Develop Bugs

*UPDATE* Help - Phone won't boot after attempting Sim Unlock

Hi Guys,
I am aware of how to upgrade a ROM, how to Use HardSPL and how modifying in general works, although I think I may have really broken the phone now.
I had OliNex 1.40 installed since forever. I have used several Roms in the past including EnergyROM, Ahen's Roms and I have currently been using Makeveral's BSB6.5O Rom, and it was working great.
The last time I tried to use the unlock, i tried to flash it with the 'Subrata' unlock package (the one with Step 1,2 and 3' folders. It didnt work both times I tried so I gave up. It said it was unable to write to the phone. I reflashed with BSB Rom and all was well.
Today, I found a seperate unlocker. It was a simple .exe file that opened up what appeared to be the 'CustomRUU' application. The screen initially went black and then the program said that it lost connectivity. I did read that it used Cmonex HardSPL but I did it anyway (I take responsability for this error) and from then on, the phone will not boot. No matter what combination of Hard reset button combinations I use, nothing happens. No vibration, no light around the centre button that I can see, nothing.
So is there anything, anything at all that I can do? Or have i totally F**ked it?
I have also done alot of searching both on here, PPCgeaks, all the forums.
Let me know, cheers guys.

I had a similar problem: Screen was black, no reaction from the phone. But i was able to connect it to my computer, it was not really detected, even though
i was able to flash a new Rom with a Custom RUU. Perhaps you could try that?

Try to change the rom . Pull out the stylus , Press the reset button and hold the VOLUME DOWN and the right down button . After connect to pc

The phone is in an Off state - I recharged the battery in it overnight - no white glowing ring around the centre button. No combination of buttons work - nothing happens and the device is off still.

OK, regardless of what has happened, Ive sent the phone to Victoria (Australia) to be repaired or replaced under warranty.
I just hope that it is so scrambled that they cant figure out that the device has been toyed with - will keep everyone updated!
btw - does anyone understand what technicians with more advanced tools would be able to determine (if anything)? Do they use special hardware to view the contents of the ROM or how does it all work?
thanks friends

Well..not exactly, but they have probably tools to examine the flash/memory/parts of the phone. interesting question

Update!
I sent the phone away to the Three mobile repair centre - the phone is back, fully repaired and Running BsB again.... just awesome.
it seem they replaced all the components of the phone except for the shell itself, I dont really know why they didnt just replace the phone? lol
EDIT: I forgot to mention that I told them the phone wouldn't boot after an overnight charge - thanks 3!

Sorry for bumping.
I have the same problem! I used the same program; 'DiamonCustomRUU.exe'
The screen became black. I can't open the bootmenu, soft- and hardreset doesn't work
It's a Dutch branded Vodafone TD.
I have to send it to Vodafone for repairing?

[Q] Xperia Play Won't Turn On

I am currently trying to fix a friend's Xperia Play r800a. It seems to be having a few different problems and together they are making it all difficult to get it going again. First off I have no real knowledge of toying with an Android phone. I browsed some threads on here, used Google and tried to use Flashtool to get the original operating system on it but all were a no go. I'll try and describe the problems to the best of my abilities and maybe someone can offer some help.
This is what I know from what he remembers he did to the phone. He said that the phone started t only boot to the Sony logo and then it would hang until the battery died or the phone was reset. If plugged in with a wall charger then it would allow him to get to the screen where he would enter his password but the touch screen wouldn't work. He then flashed it using Flashtool and at that point it would boot to a black screen and that's it.
-It hangs on a black screen, no logo or anything is present and it happens regardless of whether it is plugged into a wall charger or not.
-It is not found when plugged into the USB port (Windows 7 PC) and shows up as an unknown device. After a few minutes it is found by the PC but sometimes will randomly go back to an unknown device.
-I sometimes get a red light which blinks three times when I press the power button on the phone. I am currently charging it to see if it was a matter of being a dead battery or something worse (I heard it could be a hardware failure).
Any suggestions would be appreciated.

My Xperia Play has done This I asked a Mate (Jinx13) He said Il do a hardcore Testpoint process. After I have done this My Phone will Vibrate and Nothing I was Playing Rayman today and it Locks and Hardware Keys Do Not respond.
Then Touchscreen Stopped Working. Indeed This is a Hardware Failure I have got this and Re-Flashing with Blinking SETOOL2 and Resseting it Wouldn't work. I Then Re-Locked By fastboot SIM and Bootloader (Maintained DRM) and Now Dowloading R800i O2-UK From SETOOL Support and 3-UK one and I will Upload them for US people for Warranty they Become indeed handy . I now Am Going to O2 shop I was Running 2.3.4 .42 GENERIC.But I am Not allowed to Give you the FW's Only by Re-Uploading I Can. Anyway My Brave Soldier Died (Hardware Failure) Its the Screen Components.Im Not Rooted anymore and Re-locked with S1-Tool.
If this happens to you My advice is Dont Flash Alpha ROM's They can make Your device Coo Coo. And OC can Damage.
Basically I boot My phone with a 3600MAH Mugen Battery 89% Battery From the Last time It was on. Im afraid your friends Phone is Dead Maybe a Hardware Failure Most Likly and I am now Officialy Out of the Game.
But O2 Gave me 3 Year warranty!!!!! For £100 When I Purchased it. So I am Going to O2 in Stevenage and Say this What actually happend:
"I Purchased My Xperia Play on August 17th Through Online Store ; I have never had a Problem With My device Untill This week : I have had these Issues:
*Touchscreen Wont respond Cleaned Several Times.
*Random Reboots
*Red Light when Phone had 50%+ Battery
*Would Take 6 Battery Pulls to Turn on (Would Only turn on Earlier during the week)
*Lagged In games.
*Running O2 Branded Software
*No Screen Brightness or Signs of Working Screen.
*Would Not charge Unless turned On
*Camera Would Not work Unless Wifi Was not on I dont know why?
So Basically This Phone had a A fault since Day one I always had Camera Fails.

bluetoon said:
I am currently trying to fix a friend's Xperia Play r800a. It seems to be having a few different problems and together they are making it all difficult to get it going again. First off I have no real knowledge of toying with an Android phone. I browsed some threads on here, used Google and tried to use Flashtool to get the original operating system on it but all were a no go. I'll try and describe the problems to the best of my abilities and maybe someone can offer some help.
This is what I know from what he remembers he did to the phone. He said that the phone started t only boot to the Sony logo and then it would hang until the battery died or the phone was reset. If plugged in with a wall charger then it would allow him to get to the screen where he would enter his password but the touch screen wouldn't work. He then flashed it using Flashtool and at that point it would boot to a black screen and that's it.
-It hangs on a black screen, no logo or anything is present and it happens regardless of whether it is plugged into a wall charger or not.
-It is not found when plugged into the USB port (Windows 7 PC) and shows up as an unknown device. After a few minutes it is found by the PC but sometimes will randomly go back to an unknown device.
-I sometimes get a red light which blinks three times when I press the power button on the phone. I am currently charging it to see if it was a matter of being a dead battery or something worse (I heard it could be a hardware failure).
Any suggestions would be appreciated.
Click to expand...
Click to collapse
okay lol i don't know if that second post helped but is the phone unlocked? by any chance if it is, you can never really brick your xperia, from experience i kept flashing re flashing cusom kernal all day i get the same loops etc, but always fixable, also flash tool should fix your phone if that is you got the right ftf file for the brand like i have verizon and it have a verizon.ftf file, other than that i need more info about the phone not how it bricked, like what was it running at first etc. Try sony software reflashing repairing if that doesn't work use flashtool and see if you get an error with that

I cant enter fastboot or recovery lol

Xperia4life said:
I cant enter fastboot or recovery lol
Click to expand...
Click to collapse
lol xD oh danm only possible way i think is to try flash tool and downloading the ftf file for your phone and let me know if you get any errors

biggyhead said:
lol xD oh danm only possible way i think is to try flash tool and downloading the ftf file for your phone and let me know if you get any errors
Click to expand...
Click to collapse
my phone is having the exact same problem, it wont recover through pc companion and flashtool wont even work cause I cant get my phone into flashmode.
are there any other tricks that might get my beast running again?

NevErSn0w said:
my phone is having the exact same problem, it wont recover through pc companion and flashtool wont even work cause I cant get my phone into flashmode.
are there any other tricks that might get my beast running again?
Click to expand...
Click to collapse
How are you trying to get into Flashmode?
Sent from my Slider SL101

Touch Screen not working at all

Device is fine and can be used via bluetooth mouse / keyboard - however, touchscreen went completly dead
formatted it - changed image, same result
anyone have any idea how to fix it , like a link to a video - part needed - or even a UK store
thanks

I have a similar issue.
I've had my Pixel C for around 11 Months, purchased direct from the google store in November 2017.
Last week I opened the tablet and the screen was totally unresponsive. The physical buttons were working so after several forced reboots which did not help I went for the Nuclear option and restored the device to factory defaults. This didn't work either and I was still unable to interact with the screen so logged a call with Google. I was about to invoke the warranty when suddenly the device responded again after a further reboot. I agreed with the support person that I would keep it for the time being, hoping it was just a glitch
Unfortunately the problem has recurred twice again and the only way to recover seems to be to power the device off, leave it for a "while" and power on.. not exactly scientific.
Has anyone else experienced similar issues? The device received a security update mid last week so I wonder if this is more than coincidence.
Any road, in this state the device is completely unreliable so I'll be looking to return it. I'm assuming google will not have any new replacements so I need to find an alternative android tablet

touch screen pixel c unreliable
owens2000 said:
I have a similar issue.
Has anyone else experienced similar issues? The device received a security update mid last week so I wonder if this is more than coincidence.
Any road, in this state the device is completely unreliable so I'll be looking to return it. I'm assuming google will not have any new replacements so I need to find an alternative android tablet
Click to expand...
Click to collapse
Same for me. The touchscreen is unresponsive, thought it would be hardware damaged, but did a couple of restarts, and all of a sudden I was able to type ten letters, then unresponsive again. Were you able to resolve this issue? Thanks!

after the last few updates the screen would respond less and less. This last update last night killed the screen completely. Zero response! I honestly think this is an error on their part but even if they fixed it in an update I cant get in to install the update!
I wanted to root and install a custom rom to see if that would fix it but honestly Ive been out of the loop for so long and without going into dev mode Im not sure I can at all.

tevil said:
I wanted to root and install a custom rom to see if that would fix it but honestly Ive been out of the loop for so long and without going into dev mode Im not sure I can at all.
Click to expand...
Click to collapse
I know how you feel. Same here, touchscreen became unresponsive before I could do any settings to flash anything else e.g twrp. Please share your next steps. Thanks

milgrave said:
I know how you feel. Same here, touchscreen became unresponsive before I could do any settings to flash anything else e.g twrp. Please share your next steps. Thanks
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Click to collapse
Im working on trying to unlock the bootloader right now. I tried the toolkit but its giving me a syntax error on trying to flash in fastboot since thats the only thing I can get to. Whats crazy is even the android recovery option is corrupt and this is a stock tablet. I really think google did this to these devices on purpose or unintentionally but has no intention on fixing them. I couldnt even run the update any since there is no way for me to get to anything.
Im looking for instructions on how to do everything from fastboot and ADB but everything is so outdated.

milgrave said:
I know how you feel. Same here, touchscreen became unresponsive before I could do any settings to flash anything else e.g twrp. Please share your next steps. Thanks
Click to expand...
Click to collapse
Hey sorry to post twice but try these. I just tried these steps and got my tablet fully wiped (do caches first) and working. Im enabling USB debugging and bootloader unlock and doing it all now. This was proven to be a google update issue to me.
Perform a master reset
https://thedroidguy.com/2019/08/how...3-xl-touchscreen-not-responding-issue-1094388
To factory reset your Google Pixel 3 XL:
Turn off your Google Pixel 3 XL.
Press and hold the Power+Volume Down buttons until bootloader mode (image of an Android with Start above it) appears, then release.
Select Recovery mode. You can use the Volume buttons to cycle through the available options and the Power button to select. The device will flash the Google start screen momentarily and then restarts in Recovery mode.
If presented with an image of a broken Android with “No Command” printed on the screen, press and hold the Power button. Press the Volume Up button once. Then release the Power button.
From the Android Recovery screen, select Wipe data/factory reset.
Select Yes. Wait for several minutes for the factory data reset process to complete.
Select Reboot system now. Allow several minutes for the factory data reset and reboot processes to complete.
Set the phone up again.
from there I just now used wugfreshs tool kit to unlock the bootloader and Im going to install TWRP and probably a custom rom to avoid updating again.
Update: def a software issue. I worked fine with this tablet for a few hours. Installed 1 app then it locked again. Opera browser. I've had my suspicions of the app for a while which is why I tested this app first. I'm using those same steps again to wipe and seeing if the touchscreen works again. I had trouble getting twrp and a room loaded due to encryption. There is apparently a decrypt file you need to install recovery and root. I can't seem to locate the correct one but wugs toolbox sees the device fine once the drivers are installed.
Ill keep this running and updated with results.
Full wipe and reset again and the screens not working again. What stinks is I once again can't get it into dev mode. I guess maybe it is a hardware issue. Sad, this thing has always been in a case and babied. I still think tho it's a bug with newer releases and the hardware in certain C's. It's beyond warranty though so what can we say to Google at this point. It's not even an old tablet and was pretty pricey. My Nexus 9 still runs perfectly!

[HELP][ISSUES][SM-A505F/DS] My Samsung Galaxy A50 is corrupted ??

Hi, I recently bought this new phone (Galaxy A50) from the official Samsung Store (11/7). The phone came with a software version:
PDP: A505FDDU1ASBD
CSC: ASB7
Security Patch: 1 February 2019
After sometime, I decided to start rooting my Galaxy A50 following the steps in a thread on XDA (created by @geiti94). Unlocked my bootloader and rebooted to the system, I setup the phone without my Samsung and Google Acc, and I switched off the phone then entered the download mode. I put the TWRP Magisk Patched file at the AP section in Odin and unticked everything except Flash Lock. Warranty void (Knox tripped). Everytime I restarted the device, I have to boot rooted with Magisk (Recovery) or else I will lose magisk. It turned out to be true and bricked my device:
"Only official released binaries are allowed to be installed".
I then downloaded the stock firmware files (ASBD) from Sammobile.com and reflashed it back to the device. Success flashing stock without any problem then I set up the device, plugged in and went to sleep. I didnt know what did happen while I was sleeping and when I woke up, my phone had the OVERHEATING WARNING (device was hot) and the system was already switched off my device automatically. I took off my phone casing and I found out that my phone casing was wet. I didnt know where the water came from and I didn't even know when it got there. I'd never thought that the water could flow into the phone since it was very little. I switched on my device without hesitation. Right after it switched on, moisture has been detected in my usb port. I switched on the device and took out my sim card and ext mmc, I put it in front of the fan and let it sit for like 5 hours. The phone was okay. Phone rebooted normally and I didnt face any unusual behavior from my device.
Within 30 minutes of using the phone, I received Device Overheating Warning again, apps were closing and device was shutting down (physically the device wasn't really hot). It was warm. I let it cool and I received no more overheating warning. Suddenly, the device was being abnormal. It went to:
1. Screen locked itself and display lockscreen. I unlocked it back and it locked itself back. It happens frequently.
2. Screen locked itself and display lockscreen and the screen will on off like something was playing with the power button. It got crazier when I tried to charge the device, the 'display on off' went faster. Then, i could no longer use my power button to unlock since device didnt let me get to my unlock screen.
When it happened, I couldnt shut down my device using the normal way. I had to hold my power button and (-) volume button to restart my device. Device rebooted, 3 minutes and it went strange again.
I was frustrated and clueless. Went into safe mode and getting the same result. I tried reflashing the firmware again and it was being normal until i finished device setup then it happened again. I thought it happened because I tripped my Knox.
Tried different method. This time I downloaded and flashed stock firmware (A505FDDU2ASH3).
PDP: A505FDDU2ASH3
CSC: A505FDDU2ASH1
Security Patch: 21 August 2019
And same issues occured. This time:
1. From getting locked itself and display will 'on off', this time it eventually went locked itself (noticed 'screen lock sound') and nothing i could do to unlock it because the power button had no function! But I could reboot manually by holding (-) volume and power button! Stock recovery mode everything was okay. Display, power button and volume up and down button is okay. No issue in that mode.
2. Attempted factory reset and tried setting up again. Right after it displayed 'Phone is starting' it locked itself again. Reboot again. I quickly swiped my finger trying to not let it locked itself again. It worked and prevented the device from locking again. I realized that my UI didnt respond when I used the volume button to increase/decrease the volume. Power button only responded to lock screen and didnt respond to unlock it back but the device was still on.
Since Knox had tripped, I tried another solution. I rooted the device just like how I done it before. I still believed that it was firmware error not caused by any faulty in my hardware component. I installed TWRP w Magisk Patched, multidisabler, and flashed a stable custom kernel (SkyKernel V1.2 by @AlexGeek3) that worked w my device, and yes device worked normally. Magisk installed. Safety net verified. I disabled some pre installed Samsung Apps and Services (e.g. Find My Mobile and screen lock service) that maybe would be the caused. Just when I set up my Google Acc, the issues occured again. When I checked my CPU and battery temperature using kernel tweaker (installed alongside SkyKernel V1.2) and noticed that the temperature reading was so high (70°C-90°C) but device wasnt even hot. This had become very strange ?
Then I decided to bring it to the mobile repair shop. He said it may happened when I downloaded the firmware files using Mobile Data, so the files downloaded weren't accurate since the network is unstable and told me to bring it to the Samsung Service Center. Then I tried to get help from Samsung Official:
1. Chat through Live Support: He told me that Sammobile.com wasn't authorized by Samsung. He told me that maybe hardware faulty issues because it had contact with water. Told me to bring it to Samsung Service Centre.
2. Called Samsung Hotline: She told me it happened when device had been root. And nothing I could do to unroot it back and asked me to go to Service Center instead.
3. Called Samsung Hotline: He told me that it might occured since I downloaded the files using Mobile Data and even that I had successfully flashed the firmware, the problems existed because the downloaded files had corrupt. He told me to just go to official service centre and tell them to flash the official stock firmware and check if the issues persisted.
4. Called Samsung Hotline: He told me since device had been rooted, warranty was voided and there would be NO WAY TO UNROOT THE DEVICE. Hence, I would have to replace the motherboard to be able to use the device again.
Each time I called the hotline, I spoke to a different staff. I explained thoroughly to each of them the issues I was currently facing at the moment and how/when it started to occur. All of them had a different explanation and the same solution. I called them again & again because I wanted to find the most least solution I could find to the major solution to fix the device. I was trying to make sure if the issues still happen after clean flash install official stock firmware, only then I will take further actions to check on my hardware.
Concluded myself to bring it to the Samsung Service Center and flash the official stock firmware for my device. (60 Km away from my place). I called them a day before going to the SSC to ask about the process and cost to do it. Next day I went to the SSC. Cut it short, I explained to the staff from the beginning. I wasnt really satisfied because she didnt pay attention to what I was explaining. And because of that, she printed out the agreement and asked me to sign it. I read it patiently and I was confused when I looked at the Details of Problems section and my warranty status was still VALID but device stated that my Warranty was already voided ?
Problems: Phone can't switched on. Scratch on the side housing. Water damaged.
I looked at her again and asked her if she really confirm about the problems. She said that the technician will check the hardware and told me to wait an hour for them to check the hardware. She called me again within 1 hour and I was really disappointed by the fact that they said my hardwares were water damaged and the repair cost is 3/4 the price if I buy a new same device. If that would be the cost, it would really better if I just buy a new phone ? I disagreed for it and asked if they could reflashed the official firmware for my device. She said yes but my warranty status will be discontinued, and they would take no responsibility if the problem still occured. But if I agree w them to repair it and pay 3/4 for the replacement, my warranty will be extended ? such a an idiotic way to make your customer pay you such costs.
W/out further due I told them to reflash/clean installation full official firmware for my device and they kept repeating the same thing again that they took no responsibility blablabla and I just nah just do it la haih ? and ended the call.
Arrived SSC later after 30 mins, I thought that they had done the job. No. Another disappointment, most stupidest reason that I had to accept from them. They were telling me that if I flash the official firmware, my warranty will be voided and they take no responsibility for it. What the heck? I already allowed them to do so, and that was the reason why I came to the SSC, and even my warranty was voided because I had tried customization using unauthorized firmware for my device. I asked them to take a picture of my device hardware or maybe bring it to me because I wanted to have a look at it but they denied my request (That repair cost is to replace new motherboard, new usb charging port, new lcd display and new battery).
Exhausted, angry, and disappointed by them, I requested them once again to flash the official firmware and I didn't care about what would happen afterwards. They told me to wait a couple minutes until their technician completed the flashing process. Such an utter bull****, they told me that my device couldn't being detected by the PC since my USB Port was damaged. I took the device, left with frustration. I have wasted my time, energy and money and didn't even get what I wanted.
To sum up everything:
Samsung Service Centre:
1. SSC: Phone couldnt boot/switched on.
Truth:
But even until today I still can switch on my device.
2. SSC said the charging port had been damaged but until today I still can charge the phone. Its only couldn't be charged when it is switched on because device will detect overheating and stopped the charging progress.
3. SSC: Charging port is damaged so USB data transfer to the PC cannot be used. PC won't detect device.
Truth:
But still, up until this day I could still make a data transfer, flash firmware using odin.
4. SSC: LCD Display is damaged thats why it doesnt display correctly.
But recovery mode and download mode didnt have the same issues only. Issues happen when device boot the system.
Firmware:
1. Firmware wasn't downloaded correctly using Mobile Data.
2. Security services provided by Google and Samsung could be the reason.
3. Knox had tripped (e-fuse) and forced the firmware to crush itself causing damage to the system. (I am not sure abt this, based on what I had read)
4. Replace a new motherboard because the current motherboard could no longer be used after device has been rooted (?)
Hardware:
1. The water may have caused little damaged to the hardware.
2. Flex cable connectors (LCD Connector, Charging Connector, Power/Volume Connector) need to be replaced.
3. Check the CPU and properly apply a thermal paste and check if the problems solved.
Any help is really helpful and appreciated ???

that's one wall of text if i ever seen one.
post a very concise tl'dr at the bottom if you want people to help my man

who tf gon read this mf frfr ??

Hi,
A sensor will probably have been damaged, since the A50 does not have any IP protection in that case I cannot help you

hi guys
I need help. I have a galaxy a50 with firmware version as A505FDDS9CUI4(android 11) but recently after an OTA update I have started getting issue where in the device restarts automatically and sometimes even gets stuck in the booting process. So I thought of downgrading the device for fix but I am not able to downgrade as the firmware that I wanna downgrade to, is A505FDDS7BUB5(android 10) and the binary number for both the firmwares is different so I am getting error in odin. So if I root my phone and install custom recovery(TWRP) and flash custom rom, will it work? or will it get bricked in the process? is there any way that can fix this issue because as of now samsung has not recognised this issue officially and many other samsung device owners of A and M series are facing this issue. Any help would be appreciated guys. Thanks.

Question A52s random “Can’t load Android system.” when rebooting

Hi all,
I am encountering this strange bug randomly: sometimes the device Is rebooting itself and it goes automatically in recovery mode, sometimes after a reboot it does the same. The error is always: Can’t load Android system. clicking on “try again” solves the issue (sometimes at the first retry, sometimes after some retries).
I’m attaching the error screens, also because the error message is not every time the same (Attaching also a normal way to enter recovery).
Has someone encounter this bug?
Any hints on how to solve this? I haven’t already do a full reset of the phone, but i think it wilL be the next step I’ll do if the phone is continuing like this.
Thanks!

Hi Arobase40, thanks for your answer.
Yes i know that this things could happen if you do some strange things to the phone (and in my past i was used to that ) but in this case, all is pure and untouched, no unathourized apk and no modding at all. (My use is quite noob-ish now eheh)
And that's seems very strange! :/ I made only ota update and this happened both with android 11 and 12.

Arobase40 said:
This mostly happens when you did some tricky things on your phone. lol
If full reset is not enough (specially when the system is missing....) you'd have to restock it with an official Samsung firmware... ^^
Click to expand...
Click to collapse
Hi Arobase40, thanks for your answer.
Yes i know that this things could happen if you do some strange things to the phone (and in my past i was used to that ) but in this case, all is pure and untouched, no unathourized apk and no modding at all. (My use is quite noob-ish now eheh)
And that's seems very strange! :/ I made only ota update and this happened both with android 11 and 12.

Arobase40 said:
Well ok, in your case try to flash back a stock firmware from Samsung with Frija or Samfw (don't forget to supply the correct model and CSC) using PC Odin.
If that don't fix the problem then get in touch with your local Samsung website and you should find a phone number for the after sale service and they will give you the nearest Samsung official repair center from your home.
They should fix this issue very quickly using most probably the same tool which is PC Odin.
If you go to the repair center don't forget to backup all your apps and data, remove your scard if you have one and also your sim card...
Click to expand...
Click to collapse
Thanks for your help and explanations.
Just to be updated and make some laugh: today the phone while was charging has become completely unresponsive, showing "Samsung Galaxy" on a black screen when touching Power Button or connecting to Power. After a while (hard pressing Power Button and Power+vol up) it restart itself and works again. Never had such an experience with a phone (a COMPLETELY stock phone)

IvanCattaneo95 said:
Thanks for your help and explanations.
Just to be updated and make some laugh: today the phone while was charging has become completely unresponsive, showing "Samsung Galaxy" on a black screen when touching Power Button or connecting to Power. After a while (hard pressing Power Button and Power+vol up) it restart itself and works again. Never had such an experience with a phone (a COMPLETELY stock phone)
Click to expand...
Click to collapse
Idk, seems like a hardware issue to me. Try and have a go at where you've bought it and have them check it over.

My first thought too is hardware.
A few years ago I had something similar with a different phone (Moto G) - as a last ditch effort I popped out the SIM and SD cards and reseated them and it worked perfectly after that. If you have an SD card you might even want to leave it out a few days just to see.
Not saying this is your issue but couldn't hurt to try!