Before finding ways to restore or find back your contacts, you'd better to have a look at your Oppo device, because your contacts might not be deleted. So you need to make sure all your contats are being displayed.

1. Find "Contacts" and open it on your Android phone.
2. Tap on the menu button on the top right corner. Then choose "Settings" > "Contacts to Display".
3. Select "All Contacts". Now, you can return and check whether you got your contacts back or not.

If it is back, that means your contacts is not deleted but hidden.

Preparation Works for Jailbreaking:

1. Charge your iPhone's battery fully. Your iPhone may meet some problems if the battery runs out of energy during the jailbreaking process.
2. Update the software according to detailed requirements of the software.
3. Make a backup of iPhone files on the computer in case that you failed in jailbreaking, which may result in a bricked iPhone. You can also click to know how back up iPhone files on computer or how to avoid turning your iPhone to be bricked.

Actually, increasing battery life for Android Phone is not such a difficult thing as you think. To make your device run for a longer time, you only need to adjust some settings of your device like reducing the brightness of screen, disabling wireless network, quitting background software and so on.

Actually, increasing battery life for Android Phone is not such a difficult thing as you think. To make your device run for a longer time, you only need to adjust some settings of your device like reducing the brightness of screen, disabling wireless network, quitting background software and so on.

There is some tips that could save the battery life for your reference:
1) Use Low Power Mode
2) Restrict Unimportant Notifications
3) Turn off Wi-fi if You Don't Need It
4) Do not Activate Location Service
5) Lower Screen Brightness
6) Limit Background Refresh for Applications
7) Tighten Up Auto-Lock the shortest period for your device, namely 30 seconds.

There is some tips that could save the battery life for your reference:
1) Use Low Power Mode
2) Restrict Unimportant Notifications
3) Turn off Wi-fi if You Don't Need It
4) Do not Activate Location Service
5) Lower Screen Brightness
6) Limit Background Refresh for Applications
7) Tighten Up Auto-Lock the shortest period for your device, namely 30 seconds.

You absolutely don't want to spend more time downloading the songs again to the new Samsung cell phone if you have already saved them in the old Samsung. That's when the Phone Transfer (Windows or Mac) intervenes. Not time-consuming at all, the phone transfer software allows you to transfer music from Samsung to Samsung in three simple steps. In addition to music, files like videos, contacts, SMS, call logs, apps and photos can be synced between these two Samsung smart phones too.

There is some tips that could save the battery life for your reference:
1) Use Low Power Mode
2) Restrict Unimportant Notifications
3) Turn off Wi-fi if You Don't Need It
4) Do not Activate Location Service
5) Lower Screen Brightness
6) Limit Background Refresh for Applications

You could try below solution:
Pull out the charging line of the mobile phone and plug it in. If the charging is responsive, it may be caused by poor contact of the data cable interface of the mobile phone.
If the charging cable is plugged in again, the phone will not respond. Change the charging cable. If it can be charged, the charging cable is broken.
If you change the charging cable and don't respond, try changing the charger. If you can charge it, then the charger is broken and the phone is not charged.
If you change the charger, the phone still can't charge, and the other person's mobile phone is charged with this charger. It means that there is a problem inside your mobile phone. If there is a problem with the system, it will cause the battery to be charged. A mobile phone battery management software to fix it, if you can't, you can also brush the machine.

Huawei Honor 10,I like it.