03 September 2018

How to Remove Pattern Lock & FRP Lock in Oppo A71 CPH1801

Posted by
03 September 2018
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Note : MRT Tool is license box not for free so carefully follow this post

If want to remove pattern lock & FRP Lock in Oppo A71 CPH1801 Phone then can try to repair it by your self have to charge a battery with any charger and charged it by 95%. Your data is very important for so it is good to do a backup of data it may consist of contact details, important messages, emails or any other important thing which feel to be the backup in a device. This backup can be done on another device. we have to do the backup because after a format of a device, all data will be gone and it will not be recovered. For backup in other devices, you can use another external device like hard drive, SD card or any other suitable devices. If are doing by own. do it at your own risk as we don't take any responsibility if a device is damaged
Oppo A71 CPH1801 Pattern Lock & FRP Lock you can easily solve using MRT Tool if any problem with this method if you are fresher technician or experienced technician in android software related if the error occurs like USB not recognized then your USB is not working. If a battery is not charged, your USB socket will not proper work and you will fail in this method. if any issues please write your questions in the comment box I will try my best to help you.


  • Oppo A71 CPH1801 Phone with good charged battery (do not try with low battery)
  • MRT Tool
  • USB cable (good quality)
  • Qulcomm USB Driver
  • Computer or Laptop


  • Open MRT tool
  • Click on "QC_Unlock"
  • Qualcomm Unlock option choose Brand "OPPO" Option
  • Qualcomm Unlock option choose Brand Moble "A71-QLM" Option
  • Qualcomm Unlock option choose Brand Port "COM:50" (this is example) Option check your own detect COM port you can see full video tutorial in below video tutorial
  • Press and hold Volume Up + Down button and Insert USB Cable (for Com port)
  • Click on Start button
  • Just Insert USB cable to phone and wait until completed

Video Tutorial
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