How to hard reset Koolnee Rainbow
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1. Turn off your phone using the POWER button.
2. Press and hold the Volume Up(+) and POWER buttons at the same time for a few seconds.
3. Release all keys when you see the Android robot logo.
4. Press the Volume Up(+) and POWER buttons together to open the Recovery Mode.
5. Select wipe data / factory reset. Use the Volume Up(+)/Down(-) buttons to navigate through the menu items and the POWER button to confirm your selection.
6. Select Yes - delete all user data and press the POWER button.
7. Restart your phone, select "reboot system now" and press the POWER button.
Hard Reset - advantages and disadvantages Koolnee Rainbow?
In simple words, Hard Reset means hard resetting the phone. As a result, the system automatically returns to the factory settings and the system is completely cleared. Contacts, correspondence, application, files, search queries, passwords - all of this is deleted from the device's memory.Benefits of Hard Reset:
The ability to get a completely clean phone from user settings and data.
Removing viruses that have entered your phone.
Solving problems that arose after installing some applications and remained after they were removed from the phone.
Disadvantages of Hard Reset:
Completely remove all user files and settings on the device.
The need to create a backup.
Unfortunately, in some cases, not all viruses on Android will be removed, even after a hard reset.
What needs to be done before the Hard Reset operation.
If you want to do a hard reset on your phone, then make sure you know the login / password for your google account.
You can sign out of your google account before resetting. In this case, after performing a factory reset, you do not need to enter the login password for your Google account and you can immediately use your device.
If, after resetting the settings, the phone is blocked by the FRP and you cannot remember the login and password for entering your Google account, then for most models there is an instruction for bypassing this protection (FRP).
However, not all smartphones can bypass this protection. Owners of some phone models, especially the newest ones, will have to contact the official service center.
After performing a hard reset, your device will be completely wiped clean. Everything that was in the memory of your device will be deleted.
What can be done to avoid losing important information?
If important information (contacts, photos, videos) remains in the memory of your phone, then it can be saved in several ways:
Sync your data with Google contacts, Google drive.
Backup your contacts and information.
Transfer contacts, media files and important data to your PC using service programs for your smartphone model.
Summary: Size: 69.8 mm x 140.0 mm x 8.5 mm; Aspect Ratio: 16: 9; Weight: 150 g; Usable surface: 70 %; Materials: Plastic; Colors: Black Blue Gold; Origami: Print 3D Model; Diagonal: 5"; Screen Type: LCD IPS; Screen Resolution: 720 x 1280 px (HD); Density: Medium Density, 294 Pixels per inch differentiable less than 40 cm away; Others: , Capacitive, Multi-touch; Operating System: Android 8.0 Oreo; Model: Mediatek MT6580A; CPU: ARM Cortex-A7; Type: Quad-Core; Frequency: 1.5 GHz; 64 Bits: No; GPU: ARM Mali-400 MP1; RAM: 1 GB; Antutu score: 21.866 (Antutu v7) Overall performance better than 29% of devices; Capacity: 8 GB (Capacity with the OS (depends on the brand and ROM version): ...
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