LED Color Changes by Screen Type

[onestoploser]

It appears models/versions aren't the issue here. Screen type seems to be the deciding factor on whether you have multicolor or just white LED. BOE screen is only white, EBBG screen can be changed to multicolor. You can check which screen type you have in Device View in Engineering Mode.

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Previously:

I have a theory that some models of Redmi 4x don't support color changing LEDs. No matter what I've tried mine is white all the time. My phone version is 4x Global model MAG138 as shown in the attached image. Please post which version you have and whether or not you've managed to change your LED colors. I'll update the thread with a tally if I can get enough responses. Thanks!

So far:

MAG138 5 no 4 yes
MAE136 2 yes 1 no
MAI132 1 yes 1 no

 

[Lemmy554]

I´m on MAG138 also, only white notifications

 

[q0kHaN]

I have MAG138 version. and my phone has multicoloured led

 

[onestoploser]

I have MAG138 version. and my phone has multicoloured led

Well that shoots my theory then. I'd still like to keep this thread going though. There's something to this.

 

[tweakradje]

I´m on MAG138 also, only white notifications

What ROM are you on sir?

If you have adb shell root access can you try this in adb shell?

echo 255 > /sys/class/leds/purple/blink

Thanks

 

[Danielcdar]

MAG138 and working RGB.

 

[Usr666]

I have:
Redmix 4x 32/3 Global Version
MAG138

My led is only white.

I tried many methods to do multiple...

I suspect, that Global version is important thing. What do you have?

P.S. If I try to do this code by terminal

su
ledsdir="/sys/devices/soc/78b6000.i2c/i2c-2/2-0045/leds"
for leds in cyan yellow purple cyan purple yellow cyan
do
echo led blink : $leds
echo 255 > $ledsdir/$leds/blink
sleep 10
done

... I have only white colors in every led, BUT! Cyan not blink even white color, it's just nothing. Maybe it's important?

 

[vicky083_]

Mine is MAI132 indian variant.. i tried installing rr remix rom as it has multicoloured led light support but it didn't worked for me... I think the newly manufactured device do not have multicoloured led support.. my device manufacture month is September. And my friend have older varaint that is of month may and it have the multicoloured support Even the inhold feel Is different... The older one have more solid feel as compared to mine(newer one)...

 

[himfa71]

Mine is MAI132 indian variant.. i tried installing rr remix rom as it has multicoloured led light support but it didn't worked for me... I think the newly manufactured device do not have multicoloured led support.. my device manufacture month is September. And my friend have older varaint that is of month may and it have the multicoloured support Even the inhold feel Is different... The older one have more solid feel as compared to mine(newer one)...

I have also MAI132 Indian variant, from may2017 and multicolored led worked for me

 

[vicky083_]

I have also MAI132 Indian variant, from may2017 and multicolored led worked for me

Which method did you used... Can you please tell me? are you on RR rom?

 

[Lemmy554]

What ROM are you on sir?

If you have adb shell root access can you try this in adb shell?

echo 255 > /sys/class/leds/purple/blink

Thanks

I´m on rom xiami.eu v 7.11.9

I´ll try the shell this evening if I have more time. Actually my phone stucks at the fastboot logo and I don´t know why.

Thanks for your help!

 

[Usr666]

+
What type of screen do you have?
I heard, that ebbg screen is RGB led and boe is only white.

 

[tweakradje]

I have 2x ebbg and 2x RGB led

 

[himfa71]

Which method did you used... Can you please tell me? are you on RR rom?

I didn't use any method, it was already present in rom, but which rom? I forgot about that, because it was before two weeks, that time I flashed back to back 4-5 roms, like miui pro, rr, aosp extended, PA, it was one of those roms, currently I am on stock global stable, because I wanted to sell this device, but I changed my mind, I was getting only 6000rs, now I am going to use it, I will start flashing different roms from tomorrow and will tell you in which multicolour led is working,

 

[vicky083_]

I didn't use any method, it was already present in rom, but which rom? I forgot about that, because it was before two weeks, that time I flashed back to back 4-5 roms, like miui pro, rr, aosp extended, PA, it was one of those roms, currently I am on stock global stable, because I wanted to sell this device, but I changed my mind, I was getting only 6000rs, now I am going to use it, I will start flashing different roms from tomorrow and will tell you in which multicolour led is working,

Ok bro.. Thanx in advance...?

 

[BloodWolf9123]

I have a theory that some models of Redmi 4x don't support color changing LEDs. No matter what I've tried mine is white all the time. My phone version is 4x Global model MAG138 as shown in the attached image. Please post which version you have and whether or not you've managed to change your LED colors. I'll update the thread with a tally if I can get enough responses. Thanks!

So far:

MAG138 2 no 2 yes
MAE136 1 yes
MAI132 1 yes 1 no

I have MAG138 and color LED on LOS 14.1 dont work.

 

[himfa71]

Ok bro.. Thanx in advance...?

Bro, i have flashed latest miui pro 7.11.9 and multicolor led is working,

 

[BloodWolf9123]

Bro, i have flashed latest miui pro 7.11.9 and multicolor led is working,

Where is problem, 50% phones didnt work led

 

[Usr666]

Where is problem, 50% phones didnt work led

Probably all phones, that manufacted after July or August...

 

[BloodWolf9123]

Probably all phones, that manufacted after July or August...

I looking on root directory and i think problem is here