- Title: JIAYU G4S KK
- Listed: July, 2014
- Last modified: 10/29/2014 6:55 pm
- Version: ROM Android 4.4.2
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DESCRIPTION
ROM Phone JIAYU G4S – ROM Android 4.4.2
Update Official ROM JIAYU G4S WCDMA : G4S-20141022-222444 – KOT49H
Version Flash (FL)
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Update Official ROM JIAYU G4S WCDMA : G4S-20140927-1826499 – KOT49H
Version Flash (FL)
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Update Official ROM JIAYU G4S WCDMA : G4S 20140912-213816 – KOT49H
Version Flash (FL) or OTA (SD)
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Info of dontneedrom
In the original ROM V3 (G4S-20140816-190609), Superuser, even if enabled in Settings, is not working.
You put the boot.img in the rom (rename boot.v3.fixsu.img –> boot.img) and after you flash your mobile
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Warning:
1.This software only used for jiayu G4S(2GB RAM+16GB ROM) ,that's means this can't appropriate for any other model ,even can't match for G5S!
2.IF your phone upgrate to android 4.4 version,it can't downgrade to android 4.2 version(screen touch may not be correct),We may do not provide any technical support in this situation .
3.When doing upgrade progress,please choose “firmware upgrade”,mobile phone disk will be formatted ,backup your data is very Important !
Update Official ROM JIAYU G4S WCDMA : G4S-20140816-190609 – KOT49H
Changelog:
1 increase good domain theme, optimize interstellar global theme
2 increase in smart gestures wake-up function (the latest batch of models supported)
3 to increase the message notification settings switch, you can choose not to bright screen when information
4 settings - other settings - Noise Reduction menu add the following line to answer the vibration control switch, you can turn on or turn off this feature
5 Settings - Display in increased volume keys wake switch
6. repair screen driver compatibility issues
7 repair after entering the dial dial function without BUG
8 optimize RAM memory release, other small fixes BUG
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This rom stay here in download just for members who've problems with screen.
Jiayu have deleted this ROM because many problems.
DON'T install this rom OK OK OK !!!!
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UPDATE ONLY For the members who have flashed this rom and after no screen
1 .You download " Boot.img" and changed with the "boot.img" of the rom "G4S 20140724-114258"
2. After you flash your mobile ( always no screen)
3. and you reflash with this ROM JIAYU G4S – Update 06/09/2014 – FL
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Don't install this ROM with screen LG 5 touch
ONLY MT6592
Official ROM JIAYU G4S WCDMA : G4S 20140724-114258 – KOT49H
Changelog:
1 Increase good domain theme, optimized interstellar global theme
2 increase the intelligent gesture wake-up function (the latest batch of models supported)
3 Increase the message notification settings switch, you can choose not to bright screen when the information
4 settings – other settings – Noise Reduction menu add the following line to answer vibration control switch, you can turn on or off this feature
5 Set – Show in increased volume key wakeup switch
6 Fixed buttons on the version without vibration BUG
7 Repair dial function without entering dialpad BUG
8 optimize RAM memory release, other small fixes BUG
Gapps include – No Rooted
Language support: Multilang
Install ROM :
- Unpack FlashTools, and Click on Flash_tool.exe
- Select a the MT6592_Android_scatter.txt in ROM
- Wait file to be added into Flash Tool
- choose Option->USB Model,click USB Model
–> Choose Option->DA DownLoad All->Speed->High Speed, click High Speed
- Turn off your phone, remove the battery.
- "Press F9 (hit Download button)" OR " if upgrade ROM Firmware->Upgrade "
- and connect your phone into the computer via USB data cable.
- The process will start and a red progress bar will appear after color purple, yellow.
- And green circles display
- Finish !
- You can now safely disconnect your phone and turn it on.
※Please make a backup of your device before installing or updating ROM


Member Info
I have 4.2.2, recomend or not the upgrade for 4.4.2?
I can't install this with SPFT, someone explains me why?
hi, maybe it will help (based on my own experience):
1. install "MT65XX USB VCOM drivers" (just googling)
2. extract ROM and rename the folder by remove chinese words. Ex: rename "G4S-20140704-161636高配4.4体验版V1.0" tobe "G4S-20140704-161636" only
3. extract SPFT, do not install when it still in ".rar" format. fully extract!
4. run the SPFT then browse the scatter, make sure the scatter loaded
5. change the "download only" to "firmware upgrade"
6. klick the "green down arrow" button then connect your G4S with no-battery attached
7. wait when it's working on and a window will appeared with "checklist" symbol
8. you can safely remove your G4S and turn it on
NB: sorry for bad english and always DWYOR! ^^v
ok, just work with SPFT have in this page
hi everyone,
I would like to ask about the SIM management..
Did you guys can turning one of dual SIM off, even the slot inserted with two SIM cards?
I did it in my old Jiayu (G3T), but not in Jiayu G4S. thanks for the answer
Hi
I've tested the new rom Update 09/26/2014,
and from now I dont have the boot animation nor I can enter in the recovery mode,
(I try to install two others recovery by Uncletom whithout success)
Beside of this, the phone works normally.
someone can help me ??!!
Thx
Add: in fact it seem I have exactly the same issue as simonmcmillen
https://www.needrom.com/downlo.....#comment-102607
is there any good news about the 'Unlucky Unsupported Hardware Batch Model" ?? (wtf !)
anyway to install a working recovery or updalr bootloader ?
Thx
Does this ROM better than Chilapos?
hello. why not get a signal (the network)? Lost coverage and can not find. What could be the cause. help
There is new official: http://bbs.ejiayu.com/thread-1.....228992-1-1.html
Anyone who tested the latest official?
wainting for report to off this last build…
thanks.