| Specification DEXP B450 |
| Hard reset DEXP B450 |
| Root DEXP B450 |
| Unlock DEXP B450 |
| Firmware DEXP B450 |
| Developer Mode DEXP B450 |
| Bypass Lock Screen DEXP B450 |
| DEXP B450 Factory Reset |
| Screenshot DEXP B450 |
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OS: Android 8.1 Oreo CPU: ARM Cortex-A7, 1300 MHz, Cores: 4 RAM: 1 GB, 533 MHz Display: 5 inches Camera: 5.04 MP (megapixels) Battery: 2000 mAh, Li-Ion |
| *#06# | - IMEI number is a unique identification that all mobile phones have |
| *#*#3646633#*#* or *#*#54298#*#* | - Engineering Mode (for smartphones based on MTK processor) |
| *#*#4636#*#* | - Diagnostic and general settings mode (Phone, Battery, WiFi and other) |
| *#*#225#*#* | - This code show the number of festivities and events in your calendar |
| *#*#426#*#* | - Open Google Play Services |
| *#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 and few other things |
| *#*#36245#*#* | - Debug email in apps/Email |
| *#*#8255#*#* | - Access Google Talk Service Monitor |
| *#*#64663#*#* | - To launch hardware test (Version, Sim, WLAN, Battery, Radio, Speakers, Bluetooth) |
| *#*#7780#*#* | - Reset to factory settings. |
| *2767*3855# | - The firmware of the device is completely reinstalled |
| *#*#232338#*#* | - Wi-Fi Mac Address Information |
| *#*#34971539#*#* or *#34971539# | - Show phone 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#*#* | - Launch 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#*#* | - Open the proximity test |
| *#*#8351#*#* | - Enables voice dialing logging mode |
| *#*#232331#*#* | - Test the Bluetooth |
| *#*#232337#*# | - Displays bluetooth device address |
| *#*#7262626#*#* | - Field test |
| *#*#0289#*#* OR *#*#0673#*#* | - Audio test |
| *#*#0842#*#* | - Backlight and Vibration test |
| *#*#2663#*#* | - 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 | |
| Configure Call waiting | |
| *43# | - Call waiting is turned ON |
| #43# | - Call waiting is turned OFF |
| *#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 |
| Status of divert all calls | |
| *21*PhoneNumber# | - Register and activate divert all calls to PhoneNumber |
| ##21# | - Unregister divert all calls |
| *21# | - Enable divert all calls |
| #21# | - Disable divert all calls |
| *#21# | - Check status of divert all calls |
| Divert calls if your line is "no answer" | |
| **61*PhoneNumber# | - Register and activate divert on no answer to PhoneNumber |
| ##61# | - Unregister divert on no answer |
| *61# | - Divert on no answer calls is turned ON |
| #61# | - Divert on no answer calls is turned OFF |
| *#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 forwarding 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 |
| Codes for barring 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 |
| Codes for barring 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 |
| Block all outgoing international calls | |
| **331*code# | - Barr all outgoing international calls is turned ON |
| #331*code# | - Barr all outgoing international calls is turned OFF |
| *#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 |
| #332*code# | - Disable Barr all outgoing international calls except home country |
| *#332*code# | - Check status of barr all outgoing international calls except home country |
| Codes for barring all outgoing calls | |
| **333*code# | - Barr all outgoing calls is turned ON |
| #333*code# | - Barr all outgoing calls is turned OFF |
| *#333# | - Check status of barr all outgoing calls |
| Codes for barring 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 |
| Codes for barring 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 |
| Block all incoming calls | |
| **353*code# | - Block all incoming calls is turned ON |
| #353*code# | - Block all incoming calls is turned OFF |
| *#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. | |
 | Geb-Llzixo | March 19, 2024 |
| The phone has a decent design and build quality, but the screen resolution and brightness could be better. Performance is average, camera quality is subpar, and battery life is short. Overall, it's not the best value for the money. | ||
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