The Samsung Galaxy S4, model i9505, features a 13-megapixel rear camera, and a 5-inch 1080p display.

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"WARNING...Custom OS can cause problems"

Hi I have Samsung Galaxy s4 and it has this problem with OS and shows this when i turn on "WARNING...Custom OS can cause problems" but i accidentally pressed the volume down button and now it's not turning on. Can you please tell me what to do?

Answer this question I have this problem too

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Were you doing anything prior to the issue? Installing a custom OS like cyanogenmod?


I have a similar problem but neither holding the power button and the up or down volume keys works I'm my case. What do I do?


i am also having the same problem. first it started to install the update system and then it shows error message after that it pop up a notice no turn offf the phone till finsh downloading. but still it does not start. please give a solution for this problem. thanks.


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Now your phone on download mode. just remove and reinsert the battery.

Press power button and phone will be boot as usual.

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আমার ফোনে একটা পার্চওয়াড পড়ে গেছে

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