by Wojciech Sura

How to diagnose your Samsung phone

Most of smartphone owners mostly probably already heard about service codes (“diagnostic”, “magic” etc.) for their phones. Such codes are entered in the dial screen and allow access to restricted parts of the phone. Some of them modify phone’s internal settings and sometimes may even damage the phone if not properly used.

There’s one special code though, which works on most Samsung devices with stock firmware, is safe to use and provide some useful diagnostic information about the phone.

Open the dial screen and type: *#0*# . Backlight of the phone will be boosted to maximum and a new menu will appear, allowing testing most of phone’s features.

Diagnostic menu

Among these you will find filling the display with single color (red, green, blue, black), testing the vibration engine, display dimming, checking both cameras, checking status of all sensors, testing touchscreen (also screen hover and S-pen if device supports these features), speakers, phone keys, notification LED, IR LED and more.

Sensor

Note, that exiting from most diagnostic screens require double back-key press.

by Njål

“Insufficient storage available” when updating Android Apps

A few days ago I started to get the error “Insufficient storage available” when updating Apps on my Samsung S4 – running Cyanogenmod 11. I Googled it – and was recommended me to install various “cleaning” Apps – and also make sure I wasn’t out of storage space – which I wasn’t.

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What actually fixed the problem was to open File Manager (which comes with Cyanogenmod) – and deleting folders inside /data/app-lib/ for the Apps that refused to be updated. Often the Apps had several folders – indicating that an Update had beenattempted – but failed. Delete all folders related to the App.

 

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The folder names might not correspond 100% with the name of the App. If you are unable to find the folder for an App – then simply go to Settings > Apps > XXXXX and look at the namespace (marked in red below). The folder will have this name as well.

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