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My phone randomly turned off. I held the power button, the home button, both of them at the same time, I tried the volume up button with the power button, I basically tried every combination of buttons I could, and it was completely blank. I plugged it in and got a battery charging sign, which alternated with the Samsung logo. I tried volume up + home + power button, and it started alternating between the Samsung logo screen and an “installing systems update” screen. I held volume down + home + power, and got a warning screen about a “custom OS” and it said to press the volume down to cancel it or the volume up to continue with it, but whenever I press one of the two it either immediately goes away or does nothing. It is currently stuck flashing between the Samsung screen and the “installing systems update” screen, both of them flash for about one second and then go away for about two (like the logo will flash for a second, then go black for two, then show the systems update screen, then go black, and it continues). It’s been like this for about 2 hours. How do I fix it??
Hold power + volume down + home until you get to the light blue screen, and select reboot phone. See if it gets stuck on the Samsung logo, firmware sounds corrupt in some sort of way if it auto boots to recovery again. What is the model number of your phone? It’s either one of these things causing it:
- Bad Battery
- Corrupted Firmware
- Issue with the logic board (at this point paperweight phone pretty much). Does the screen go off instantly when you unplug the charger? If yes then you probably have a faulty battery. Make sure you try to charge the battery for about half an hour or two on the download mode screen if you haven’t already to rule out the battery not holding charge. You can go download mode by using home + volume down + power then select download mode.
Hi, there. Not sure if this will help you, but I found Galaxy S4 trapped in a “Warning a custom OS can cause critical problems in phone and installed applications…” It gave me the option to push volume down to cancel and restart, but the volume down button did nothing. Removed battery, nothing. What worked? First, believe it or not, I prayed to ask God to help me with this issue. Then, after removing the battery, I restarted the phone with just the Power Button and Home Button pressed at the same time. It worked! So, my recommendation is to pray and try the Power Button and Home Button pressed together to start the phone up. Good luck!
samsung Galaxy S6 Hanging problem
