The mobile phone motherboard has been changed, will the information be leaked to others?

If the landlord replaces it in a third-party repair shop, he can ask for a new motherboard and return the old motherboard. The landlord can directly throw the old motherboard into the trash can.

If the mobile phone is replaced for free after warranty, sometimes the old motherboard will not be returned, but the general information after sale will not be leaked; Before changing the motherboard, if the landlord's mobile phone can still be turned on, then directly choose to restore the factory settings and change the motherboard. If you can't boot, the motherboard has been scrapped, not to mention the problem of information leakage.

If the phone supports the memory card, remember to unplug the memory card before changing the motherboard. Generally, the photos stored by the landlord are in the memory card, and the new motherboard can still be used, which also avoids the trouble of privacy information leakage; In addition, there may be short messages in the SIM card of the mobile phone, and the SIM card should also be removed.

If you don't understand anything, just ask. If it helps, please adopt it. Thank you.