This feature may make the display appear black and white or nearly black and white. Check the Grayscale settings. Under Android Accessibility settings, you'll find the Grayscale setting under Screen colors under the Vision menu. If this is enabled, disable it to see if it fixes your screen color issue. Double-check you haven't inverted colors.

Tips for troubleshooting and resolving issues when system apps or features are not working as expected. This guide is for the Oppo A71, which is equipped with a Li-Ion 3000 mAh, non-removable battery and a 5.2 inches, 74.5 cm2 (~68.2% screen-to-body ratio) display

If your Oppo A9 does not turn on, no power or the screen is black, we have listed in this troubleshooting videos that you can try in order to fix the problem

Here’s how to reset network settings on the Samsung Galaxy A71. Step 01: Tap and launch the ‘Settings’ app. Step 02: Now, proceed to ‘System’ and Reset, and then select ‘Reset Wi-Fi, mobile networks, and Bluetooth’. Step 03: Select ‘Reset Settings’ and it is done.
Press down the Power key and select the Power off option. If the screen is frozen or unresponsive, you can hold down the Power key for several seconds until the device switches off. Press the
\n\n\n oppo a71 not turning on
Once the phone has sufficient charge you should try turning on the device and check if the Oppo A7 Black Screen of Death issue still occurs. Perform a soft reset
Hey guys, welcome to Pinoy Tech Tips. This video will guide you on how to fix a Galaxy A71 that’s stuck on the black screen of death and won’t turn on. The b

Tap on the toggle to enable Wi-Fi calling. Keep in mind that since every Android device is different, the layout to find Wi-Fi calling may also be a tad different. With Wi-Fi calling activated, you should now see Wi-Fi next to the carrier symbol in the status bar. 3. Check if Your Phone and Carrier Offer Wi-Fi Calling.

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