GDPR

LG US991(LGUS991) aka LG G4 LTE-A Compare

Model and Features
Model LG US991
Series LG G4 LTE-A
Release Date June, 2015
Depth 9.8 mm (0.39 in)
Size (width x height) 148.9 x 76.1 mm (5.86 x 3.00 in)
Weight 155 g (5.47 oz)
Operating System Android 5.1 (Lollipop)
Hardware
CPU 2 x 1.8 GHz + 4 x 1.44 GHz Qualcomm Snapdragon 808 MSM8992
CPU Cores Hexa-core
RAM Memory 3 GB
Internal Storage 32 GB
External Storage MicroSD, Up to 2 TB
Network and Data
Sim count 1 Micro-SIM
2G network GSM 850/900/1800/1900 MHz
3G network HSDPA 850/900/1900/2100 MHz
4G network LTE1900 (B2), LTE1700/2100 (B4), LTE850 (B5), LTE700 (B12), LTE700 (B13), LTE700 (B17), LTE1900 (B25)
Data GPRS/EDGE
Display
Screen size 5.5 inches
Display Type Color IPS TFT LCD
Display Resolution 1440 x 2560 pixels (538 ppi)
Display Colors 16M colors
Battery and Keyboard
Battery Capacity Removable Li-Ion 3000 mAh
Physical keyboard No
Interfaces
Audio output 3.5 mm jack
Bluetooth v. 4.0, A2DP, BLE, apt-X
DLNA Yes
GPS Yes, with A-GPS, GLONASS
Infrared port Yes
NFC Yes
USB Micro-USB 2.0
WiFi WI-FI 802.11 a/b/g/n/ac
Region File name OS File size Date Downloads
UCK US99124a_00_0119.kdz Unknown 1526354730 2017-03-30 505 time(s)
UCK US99125a_00_0317.kdz Android 6.0.x Marshmallow 1526272881 2017-04-13 881 time(s)
UCL US99120c_03_0129.kdz Unknown 1522655254 2016-07-03 134 time(s)
UCL US99121a_02_0620.kdz Unknown 1523035461 2016-07-20 167 time(s)
UCL US99122a_00_0714.kdz Unknown 1526532946 2016-08-10 59 time(s)
UCL US99123a_00_1118.kdz Unknown 1526614103 2016-12-12 150 time(s)
UCL US99124a_00_0119.kdz Unknown 1526354730 2017-02-07 107 time(s)
UCL US99125a_00_0317.kdz Android 6.0.x Marshmallow 1526272881 2017-04-10 353 time(s)

How to Hard Reset on LG US991(LGUS991) aka LG G4 LTE-A ?


Type 1:

 

Type 2:

 

Type 3:

 

  1. Turn off the phone.
  2. Next press and hold the Power key and Volume down key for ten seconds.
  3. Release the power key while holding down the volume key.
  4. Next press the power button again.
  5. After these actions, the Factory Reset menu will appear on the screen.

    Type 1:

    Type 2:

  6. Use the Power key and Volume key to confirm the process.
  7. The hard reset is completed now.
  8. As a result of these actions, the memory of your phone cannot be restored.

How to Factory Reset through menu on LG US991(LGUS991) aka LG G4 LTE-A ?

  1. Open the Main Menu.
  2. Go to "Settings".
  3. In Settings choose "General".

  4. In General select "Backup & Reset".

  5. Next, clik on "Reset Phone".

  6. Confirm by clicking  "Erase Everything".

  7. Finally, press "OK".

  8. The hard reset is completed now. 
  9. As a result of these actions, the memory of your phone can not be restored.

How to Factory Reset through code on LG US991(LGUS991) aka LG G4 LTE-A ?

  1. Turn on the phone.
  2. Open phone's Dialer.
  3. Enter one of the proposed codes:  3845#*991# or 277634#*# or *#546368#*991#.

  4. Confirm your actions by open "SVC Menu" or "Hidden Menu".

  5. Then select  " Factory Reset " (R&D Only).

  6. Finally press "OK".

  7. The hard reset is completed now. 
  8. As a result of these actions, the memory of your phone cannot be restored.

7 Comments

  • 05/17/2017 22:15:51 lgfirmwares says : Log in to Reply

    This something else.

  • 05/17/2017 21:38:50 aanarchyy says : Log in to Reply

    Thank you, but you still haven't answered my original question, about the file naming, is that number the anti-rollback or something else? and if it is, will that 22a with the 00 reset my anti-rollback or something?

  • 05/17/2017 21:36:17 lgfirmwares says : Log in to Reply

    Yes you can update 21a to 22a or 25a.

  • 05/17/2017 21:34:12 aanarchyy says : Log in to Reply

    22a would be an upgrade from the 21a i have right now though, wouldn't it be?

  • 05/17/2017 21:32:19 lgfirmwares says : Log in to Reply

    We not recommend downgrade LG phone in new versions, only up version.
    If you downgrade you make this on own risk.

  • 05/17/2017 21:10:30 aanarchyy says : Log in to Reply

    What is the number Following the Firmware? Is that the rollback version?
    IE: US99121a_02_0620.kdz (which is the one i have) would be Model US991 version 21a anti-rollback v2?
    If so, does that mean i would not be able to flash US99122a_00_0714.kdz even though it is newer, but has a lower anti-rollback?

  • 03/03/2017 16:18:45 disqus_gfwYVXv52C says : Log in to Reply

    Thank you lg-firmwares for providing kdz file.

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