三星Android 5.1已获设置权限但FRP锁未解除问题咨询

Alright, let's dig into this FRP lock problem on your Samsung S5 Neo running Android 5.1. You mentioned you used the camera trick to gain near-full device and settings access, but the lock still sticks after a factory reset—frustrating, I know. Here are some targeted, actionable steps to get past this:

• First, open up the Settings app you’ve got access to. Head to Accounts > Samsung Accounts. If you can add a temporary, valid Samsung account here (make sure it’s one you can verify on another device first), do it. Sometimes adding a new active account can overwrite the FRP lock trigger that’s still lingering.
• If adding an account doesn’t shift things, let’s clear out FRP-related system data. Go to Settings > Application Manager > All. Scroll down to find Google Play Services, tap it, then hit Clear Data and Force Stop. Do the exact same for Google Account Manager if you spot it in the list—this wipes out cached FRP verification data.
• Grab the dialer (you should have access to this now) and punch in *#21# to check for any hidden call forwarding settings. FRP locks can sometimes be tied to these. If you see any forwarding enabled, disable all of them right away using the code ##002#.
• Now, head back to Backup & Reset to do another factory reset—but before you hit that button, pull out your SIM card and SD card first. Residual data on these can sometimes re-trigger the FRP lock even after a reset.
• If the lock still comes back after resetting, let’s try a direct file tweak (since you have near-full access):
  • Download a file explorer app if you don’t already have one (you can use the browser you got via the camera trick to grab a free, trusted one—just make sure you enable "Unknown Sources" in Settings > Security first to install it).
  • Navigate to the /system/etc/ directory using the file explorer.
  • Find the file named accounts.db—rename it to accounts.db.bak (this is where the FRP-linked account data is stored).
  • Look for another file called google.xml in the same folder, and rename that to google.xml.bak too.
  • Reboot your device, then run through the factory reset process one more time.

Quick Important Notes #

• Make sure your phone has at least 50% battery before starting these steps—you don’t want the device dying mid-process and causing more issues.
• If you run into permission errors when renaming files, check if your file explorer has root access enabled (some require a quick toggle in settings).

内容的提问来源于stack exchange，提问作者jerrythebum