| Specification Oppo R821T FInd Muse |
| Hard reset Oppo R821T FInd Muse |
| Root Oppo R821T FInd Muse |
| Unlock Oppo R821T FInd Muse |
| Firmware Oppo R821T FInd Muse |
| Developer Mode Oppo R821T FInd Muse |
| Bypass Lock Screen Oppo R821T FInd Muse |
| Oppo R821T FInd Muse Factory Reset |
| Bypass FRP Oppo R821T FInd Muse |
| Screenshot Oppo R821T FInd Muse |
|
OS: Android 4.2 (Jelly Bean) CPU: Dual-core 1.2 GHz Cortex-A7 Display: 4" inc Camera: 3.15 MP,
Single |
| *#06# | - IMEI number |
| *#*#3646633#*#* or *#*#54298#*#* | - Engineering Mode (for smartphones based on MTK processor) |
| *#*#4636#*#* | - Android Testing Mode (Phone, Battery, WiFi and other) |
| *#*#225#*#* | - This code show the number of festivities and events in your calendar |
| *#*#426#*#* | - Check the connectivity between the FCM server and the mobile devices |
| *#0011# | - ServiceMode |
| *#0808# | - Change USB Settings |
| *#9900# | - Dump mode |
| *#9090# | - Diagnostic configuration |
| *#0*# | - General Test Mode |
| *#2663# | - TSP / TSK firmware update |
| *#12580*369# | - Software and hardware info |
| *#0283# | - Audio Loopback Control |
| #7465625*638*# | - Insert Network Lock Key Code |
| *#*#759#*#* | - RLZ Debug UI (Device ID, Activation Status, Some Ping Stuff, and few other things) |
| *#*#36245#*#* | - This code show Email debug info |
| *#*#8255#*#* | - This code show the GTalk Service Monitor |
| *#*#64663#*#* | - Hardware Test (Version, screen, led, sound, vibrate, all sensors) |
| *#*#7780#*#* | - Used for a factory data reset. |
| *2767*3855# | - The firmware of the device is completely reinstalled |
| *#*#232338#*#* | - View Wi-Fi Mac-address |
| *#*#34971539#*#* or *#34971539# | - Information about the camera |
| *#*#1234#*#* | - PDA and Phone firmware info |
| *#*#7594#*#* | - Changing the power button behavior-Enables direct poweroff once the code enabled |
| *#*#1472365#*#* | - For a quick GPS test |
| *#*#273283*255*663282*#*#* | - For a quick backup to all your media files |
| *#*#1575#*#* | - Full GPS test |
| *#*#197328640#*#* | - Enabling test mode for service activity |
| *#*#0283#*#* | - Packet Loopback test |
| *#0228# | - battery calibration |
| *#*#232339#*#* OR *#*#526#*#* | - Wireless Lan Tests |
| *#*#0*#*#* | - LCD display test Code |
| *#*#3264#*#* | - Ram version |
| *#*#1111#*#* | - FTA Software version |
| *#*#2664#*#* | - Touch-Screen test |
| *#*#0588#*#* | - Proximity Sensor Test Mode |
| *#*#8351#*#* | - Enables voice dialing logging mode |
| *#*#232331#*#* | - Test the Bluetooth |
| *#*#232337#*# | - Shows Bluetooth device address in Oppo R821T FInd Muse |
| *#*#7262626#*#* | - Field test |
| *#*#0289#*#* OR *#*#0673#*#* | - Audio test |
| *#*#0842#*#* | - Device test (vibration test and backlight test) |
| *#*#2663#*#* | - Display device's touch-screen version |
| *#*#44336#*#* | - Displays Build time and change list number |
| *#*#4986*2650468#*#* | - PDA, Phone, Hardware, RF Call Date firmware info |
| *#*#8350#*#* | - Disables voice dialing logging mode |
| *#*#2222#*#* | - FTA Hardware verion |
| Change code | |
| **03*old code*new code*new code# | |
| - Change code for call barring | |
| **04*old PIN code*new PIN *new PIN# | |
| - Change SIM Card PIN code | |
| **042*old PIN2 code*new PIN2*new PIN2# | |
| - Change SIM Card PIN2 code | |
| **05*PUK code*new PUK*new PUK# | |
| - Change SIM Card PUK code | |
| **052*PUK2 code*new PUK2*new PUK2# | |
| - Change SIM Card PUK2 code | |
| Activate or deactivate Call waiting | |
| *43# | - Activate waiting call |
| #43# | - Deactivate waiting call |
| *#43# | - Check status of call waiting |
| Call Forwarding | |
| ##002# | - Disable All Call Forwarding |
| **004*PhoneNumber# | - Set all configured call diversions to PhoneNumber |
| ##004# | - Unregister all configured call diversions |
| Set call forwarding | |
| *21*PhoneNumber# | - Register and activate divert all calls to PhoneNumber |
| ##21# | - Unregister divert all calls |
| *21# | - Enable Divert all calls on your phone |
| #21# | - Disable Divert all calls on your phone |
| *#21# | - Check status of divert all calls |
| Set call forwarding in case of "no answer" | |
| **61*PhoneNumber# | - Register and activate divert on no answer to PhoneNumber |
| ##61# | - Unregister divert on no answer |
| *61# | - Activate no answer calls divert |
| #61# | - Deactivate no answer calls divert |
| *#61# | - Check status of divert on no answer |
| Set call forwarding in case of "not available" | |
| **62*PhoneNumber# | - Register and activate divert on not reachable |
| ##62# | - Unregister divert on not reachable |
| *62# | - Activate divert on not reachable |
| #62# | - Deactivate divert on not reachable |
| *#62# | - Check status of divert on not reachable |
| Call diversion when "busy" | |
| **67*PhoneNumber# | - Register and activate divert on busy |
| ##67# | - Unregister divert on busy |
| *67# | - Activate divert on busy |
| #67# | - Deactivate divert on busy |
| *#67# | - Check status of divert on busy all call types |
| *#67*11# | - Check status of divert on busy voice calls |
| *#67*13# | - Check status of divert on busy fax calls |
| *#67*25# | - Check status of divert on busy data calls |
| Block all outgoing calls | |
| **33*code# | - Activate barr all outgoing calls (for code see "Safety" above) |
| #33*code# | - Deactivate barr all outgoing calls |
| *#33# | - Check status of barr all outgoing calls |
| Activate barr all calls | |
| **330*code# | - Enable Barr all calls on your phone |
| #330*code# | - Disable Barr all calls on your phone |
| *#330*code# | - Check status of barr all calls |
| USSD Codes For Barring all outgoing international calls | |
| **331*code# | - Enable barr all outgoing international calls |
| #331*code# | - Disable Barr all outgoing international calls |
| *#331*code# | - Check status of barr all outgoing international calls |
| USSD Codes For Barring all outgoing international calls except home country | |
| **332*code# | - Enable Barr all outgoing international calls except home country on your phone |
| #332*code# | - Disable Barr all outgoing international calls except home country on your phone |
| *#332*code# | - Check status of barr all outgoing international calls except home country |
| Activate barr all outgoing calls | |
| **333*code# | - Enable barr all outgoing calls |
| #333*code# | - Disable Barr all outgoing calls |
| *#333# | - Check status of barr all outgoing calls |
| Block all incoming calls | |
| **35*code# | - Enable Barr all incoming calls on your phone |
| #35*code# | - Disable Barr all incoming calls on your phone |
| *#35# | - Check status of barr all incoming calls |
| Activate barr all incoming calls when roaming | |
| **351*code# | - Enable Barr all incoming calls when roaming on your phone |
| #351*code# | - Disable Barr all incoming calls when roaming on your phone |
| *#351# | - Check status of barr all incoming calls when roaming |
| USSD Codes For Barring all incoming calls | |
| **353*code# | - Activate all incoming calls Blocking |
| #353*code# | - Deactivate all incoming calls Blocking |
| *#353# | - Check status of Blocking all incoming calls |
 |
Thomas Nilan Smartphone Expert |
| Thomas Nilan is a mobile phone expert with in-depth knowledge of the Android and iOS operating systems, who understands the settings of various hidden features that allow you to expand the capabilities of your smartphone, as well as get information about what is going on inside the phone for future repairs. He is an authority in his field, which has allowed him to become a ghostwriter for several technology publications, and he enjoys writing small mobile applications for testing smartphones. | |
 | Savovo-Noc | March 03, 2024 |
| The battery life is decent, but the charging speed could be faster. The phone has basic functionality and a simple design, but lacks advanced features. | ||
| Reply | ||
