| Specification BLU Advance A4 |
| Root BLU Advance A4 |
| Unlock BLU Advance A4 |
| Firmware BLU Advance A4 |
| Developer Mode BLU Advance A4 |
| Bypass Lock Screen BLU Advance A4 |
| BLU Advance A4 Factory Reset |
| Bypass FRP BLU Advance A4 |
| Screenshot BLU Advance A4 |
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OS: Android 4.2 Jelly Bean CPU: Processor clock: 1.30 GHz, RAM: 512 MB Display: Color / TFT, 16M colors, 480 x 800 px (4.00") 242 ppi, ~55.5% screen-to-body ratio Camera: 5 Mpx Battery: Li-Ion 1500 mAh |
| *#06# | - IMEI (International Mobile Equipment Identity) number |
| *#*#3646633#*#* or *#*#54298#*#* | - Engineering Mode (for smartphones based on MTK processor) |
| *#*#4636#*#* | - Hidden Android Testing menu (Phone, Battery, WiFi and other) |
| *#*#225#*#* | - This code check your events in 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#*#* | - Access to Rlz Debug Ul |
| *#*#36245#*#* | - Email debug information |
| *#*#8255#*#* | - For Google Talk service monitoring |
| *#*#64663#*#* | - Hardware Test (Version, screen, led, sound, vibrate, all sensors) |
| *#*#7780#*#* | - Return to factory setting. |
| *2767*3855# | - Reset to factory settings |
| *#*#232338#*#* | - Displays Wi-Fi Mac-address |
| *#*#34971539#*#* or *#34971539# | - Show camera information. |
| *#*#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 |
| *#*#3264#*#* | - Display Ram version |
| *#*#1111#*#* | - FTA Software version |
| *#*#2664#*#* | - Touch-Screen test |
| *#*#0588#*#* | - Proximity sensor test |
| *#*#8351#*#* | - Enables voice dialing logging mode |
| *#*#232331#*#* | - Troubleshoot your Bluetooth |
| *#*#232337#*# | - Shows Bluetooth device address in BLU Advance A4 |
| *#*#7262626#*#* | - Field test |
| *#*#0289#*#* OR *#*#0673#*#* | - Audio test |
| *#*#0842#*#* | - Vibration test and BackLight test |
| *#*#2663#*#* | - Touch-screen version BLU Advance A4 |
| *#*#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 | |
| 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# | - Activation Divert all calls |
| #21# | - Deactivate Divert all calls |
| *#21# | - Check status of divert all calls |
| Configure 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 |
| Configure call diversion 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 |
| Diversion in case of "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 |
| Activate barr 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# | - Barr all calls is turned ON |
| #330*code# | - Barr all calls is turned OFF |
| *#330*code# | - Check status of barr all calls |
| GSM codes for barring all outgoing international calls | |
| **331*code# | - Activate all outgoing international calls barring |
| #331*code# | - Deactivate all outgoing international calls barring |
| *#331*code# | - Check status of barr all outgoing international calls |
| Codes for barring all outgoing international calls except home country | |
| **332*code# | - Activation Barr all outgoing international calls except home country |
| #332*code# | - Deactivate Barr all outgoing international calls except home country |
| *#332*code# | - Check status of barr all outgoing international calls except home country |
| Activate barr all outgoing calls | |
| **333*code# | - Activate all outgoing calls barring |
| #333*code# | - Deactivate all outgoing calls barring |
| *#333# | - Check status of barr all outgoing calls |
| Activate barr all incoming calls | |
| **35*code# | - Barr all incoming calls is turned ON |
| #35*code# | - Barr all incoming calls is turned OFF |
| *#35# | - Check status of barr all incoming calls |
| Activate barr all incoming calls when roaming | |
| **351*code# | - Barr all incoming calls when roaming is turned ON |
| #351*code# | - Barr all incoming calls when roaming is turned OFF |
| *#351# | - Check status of barr all incoming calls when roaming |
| GSM 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 |
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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. | |
 | Zahcpc-Syg | March 21, 2024 |
| Camera quality is decent for casual use, but lacks advanced features. Battery life is average, with slow charging. Good functionality and design. Screen is clear. Performance is smooth. Operating system is outdated. Calls and network connection are reliable. Overall, a basic budget option. | ||
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