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Huawei U8820 secret codes


 Specification Huawei U8820 
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Huawei U8820


OS: Android 2.2 Froyo

CPU: Qualcomm MSM8255, Processor clock: 800 MHz, Number of cores: 1, GPU: Adreno 205
RAM: 512 MB
Display: Color / TFT, 16M colors, 480 x 800 px (3.80") 246 ppi, ~54.5% screen-to-body ratio
Camera: 5 Mpx
Battery: Li-Po 1500 mAh




Huawei U8820 smartphone runs on Android 2.2 Froyo operating system. The phone is powered by Qualcomm MSM8255, Processor clock: 800 MHz, Number of cores: 1, GPU: Adreno 205 processor. It has 512 MB. Internal storage options which can be extended with the help of 4 GB. The smartphone has a Color / TFT, 16M colors, 480 x 800 px (3.80") 246 ppi, ~54.5% screen-to-body ratio display. The smartphone is fueled with a Li-Po 1500 mAh. The main camera of the smartphone consists of a 5 Mpx. Connectivity features in the smartphone include Bluetooth, yes, NFC, 3.5 mm Jack and more. It measures 120.00 x 62.80 x 12.00 mm and weighs 130.00 g.

Secret codes for Huawei U8820

*#06#- IMEI (International Mobile Equipment Identity) number
*#*#2846579#*#* or *#*#2846579159#*#* - Engineering Mode
*#*#3646633#*#* or *#*#54298#*#*- Engineering Mode (for smartphones based on MTK processor)
*#*#4636#*#*- Hidden Android Testing menu (Phone, Battery, WiFi and other)
*#*#225#*#*- Calendar Storage, show the number events in your calendar
*#*#426#*#*- Google Play services android.
*#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 interface
*#*#36245#*#*- Email debug information
*#*#8255#*#*- For Google Talk service monitoring
*#*#64663#*#*- Used to launch Hardware Test
*#*#7780#*#*- This code can be used for a factory data reset.
*2767*3855#- Full reset EEROM.
*#*#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#*#*- GPS Test Code
*#*#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#*#*- Show 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#*#- Displays Bluetooth address
*#*#7262626#*#*- Field test
*#*#0289#*#* OR *#*#0673#*#*- Audio test
*#*#0842#*#*- Vibration and Backlight test
*#*#2663#*#*- Displays 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


GSM codes for Huawei U8820



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#- Activation call waiting
#43#- Deactivation call waiting
*#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
Call Forward All
*21*PhoneNumber#- Register and activate divert all calls to PhoneNumber
##21#- Unregister divert all calls
*21#- Activate divert all calls
#21#- Deactivate divert all calls
*#21#- Check status of divert all calls
Diversion in case of "no answer"
**61*PhoneNumber#- Register and activate divert on no answer to PhoneNumber
##61#- Unregister divert on no answer
*61#- Activation Divert on no answer calls
#61#- Deactivate divert on no answer calls
*#61#- Check status of divert on no answer
Divert calls if your line is "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
GSM codes for barring all calls
**330*code#- Enable barr all calls
#330*code#- Disable Barr all calls
*#330*code#- Check status of barr all calls
Blocking 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
Block all outgoing international calls except home country
**332*code#- Activate 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
GSM codes for barring 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#- Enable barr all incoming calls
#35*code#- Disable Barr all incoming calls
*#35#- Check status of barr all incoming calls
GSM codes for barring all incoming calls when roaming
**351*code#- Enable barr all incoming calls when roaming
#351*code#- Disable Barr all incoming calls when roaming
*#351#- Check status of barr all incoming calls when roaming
Blocking all incoming calls
**353*code#- Activation Blocking all incoming calls
#353*code#- Deactivate Block all incoming calls
*#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.



User questions and comments about secret codes Huawei U8820



userHcmypl_March 14, 2024
The phone has good battery life and fast charging, with a variety of sensors and wireless technologies. The operating system is smooth and the camera takes decent photos.
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