Xiaomi Yi Custom firmware with lastest revision

Guys please help! I lost all hope.

The video has something like a layer of grainy noise on it (looks like the whole frame is moving/flickering), no matter the lighting.
In lower light situations its extremely visible, rendering the camera useless.

Here are the links for 2 videos with the problem:



(2k, 30fps, 35mbps)

When I take a picture, the grain is gone.

Things I have tried this far:
*Refocusing
*installing modified firmware
*denoise autoexec file
*turning on and off auto light feature

Nothing helps!
 
I don't feel grainy video in these two footage, take in mind that you shoot inside with artificial light, try to shoot outside in a sunny day to test grain issue..
 
watch very close to the screen, you see the whole picture is "moving" because of the noise? just stare at one point to see it.
outside the same, bit harder to see but still existing.

no video that I ever saw from Xiaomi Yi has this "moving" buzzying grainy noise in it, even in relatively low light conditions
 
After installing this Custom firmware the Wi-Fi has become very slow and pretty much unusable, is this normal? Can I roll back to stock without any problems?
 
Alex2740 said:
watch very close to the screen, you see the whole picture is "moving" because of the noise? just stare at one point to see it.
outside the same, bit harder to see but still existing.

no video that I ever saw from Xiaomi Yi has this "moving" buzzying grainy noise in it, even in relatively low light conditions
Click to expand...
The flickering that I saw on the video, I might be mistaken... but in my experience, it is caused by the artificial light... it emites light in a frequency that is captured by you camera, its is the same thing that happens we you record a monitor/tv screens, depending on the camera settings it will record some flickering on the screen... try diffents frame and bitrates...

As Fried said, try outside in natural light and you see the difference (I hope 🙂 )
 
I created a short video to really compare both firmwares.
I did not really find a huge difference, but I'm keeping it anyway 😉

 
Hello,

Sorry for maybe being rude, but its been a while since ive been using custom firmware and somehow at some point i formatted my sd card because of a virus. Now i want to know what are you guys using for daily recordings? I mean which Custom firmware and what autoexec? There are so many different threads about specific topics , so its hard for me to choose from. I think it will also be good for people that are new to forum and want to get most of the camera without getting deeper into everything. I am interested about filming 1080p 60 fps. 35mbps maybe. Or I should film everything in 2k? Thank you very much in advance, and sorry for my english. It is not my native language.
 
DODIKAS said:
Hello,

Sorry for maybe being rude, but its been a while since ive been using custom firmware and somehow at some point i formatted my sd card because of a virus. Now i want to know what are you guys using for daily recordings? I mean which Custom firmware and what autoexec? There are so many different threads about specific topics , so its hard for me to choose from. I think it will also be good for people that are new to forum and want to get most of the camera without getting deeper into everything. I am interested about filming 1080p 60 fps. 35mbps maybe. Or I should film everything in 2k? Thank you very much in advance, and sorry for my english. It is not my native language.
Click to expand...

I'm using molded 35 firmware
1) For build : 22 - 23 - 23A - 23S
https://drive.google.com/file/d/0BxO_QexYT9EAT2xFWmZQcUtWUVU/view?usp=sharing

2) For build : 22L - 23L
https://drive.google.com/file/d/0BxO_QexYT9EAcVdRZy05OWt4alk/view?usp=sharing

And usually 2k@25 fps so I can stabilize the footage later and still have full HD

And it's not rude, everybody started small
 
Ok i have a problem. I am having problems with filming 2k. Footage flickers and lags a lot, the weird thing that its not showing some information when you look at a properties of a file(maybe that will get you on something)...
a2f91z.png
29ojzhu.png
From the properties i can see that it records on 35mbps. By the way when i try to open the file, the default size that player pops out is small comparing to the 1080p video which is almost fullscreen itself. Any help? :/
 
so I'm guessing you are using a moded firmware ?

Can you maybe upload some sample footage with flickering ?
The first thing I can think of that your SD-Card cannot hamdle such high bitrates.
Do you have a class 10 SD-Card ?
 
It says 10 on the card, but i bought it from china, so it can be lower class, because it was cheap. Actually that makes sense. Thank you. I will reasearch about class 10 sdcard from legal shops in my town. cheers
 
Hello everybody, I'm trying installing a custom firmware to my Yi camera and I unpretentiously by the high bitrate and of course 1080P @ 60FPS. I wish someone would give me some hint of a good custom firmware or script? For I am using the stock firmware of the camera (just do not remember the version now). I am looking for something around 40Mbps to 50mbps at 1080P @ 60FPS, someone can show me a good?

[I said:
"cpurage, post: 179380, member: 18473"]There you go PpenoO:

https://drive.google.com/file/d/0B3VOFIlQpGN8b3E5YTkxdVJRbjQ/view?usp=sharing

Or you can even use the following script + stock FW 1.2.12:

#YiHyper-movie script by cpurage for 1_2_12 stock firmware
#set bitrate 848x480 240fps 50Mbps
writew 0xC05C28A2 0x4248
#set bitrate 1280x720 48fps 50Mbps
writew 0xC05C25A2 0x4248
#set bitrate 1280x720 60fps 50Mbps
writew 0xC05C2122 0x4248
#set bitrate 1280x720 120fps 50Mbps
writew 0xC05C2812 0x4248
#set bitrate 1280x960 48fps 50Mbps
writew 0xC05C2542 0x4248
#set bitrate 1280x960 60fps 50Mbps
writew 0xC05C2272 0x4248
#set bitrate 1920x1080 24fps 50Mbps
writew 0xC05C2482 0x4248
#set bitrate 1920x1080 30fps 50Mbps
writew 0xC05C1F72 0x4248
#set bitrate 1920x1080 48fps 50Mbps
writew 0xC05C2452 0x4248
#set bitrate 1920x1080 60fps 50Mbps
writew 0xC05C1EE2 0x4248
#set bitrate 2304x1296 30fps 50Mbps
writew 0xC05C1EB2 0x4248
#t ia2 -adj tidx [ev_idx][nf_idx][shutter_idx]", "-1 disable"
#looks like the values are between 0-16383 (0x0000-0x3FFF)
#If you want to set noise reduction value to 2048 just remove the hash key from the row below and for all the resolutions you will have sharpness as craze
#t ia2 -adj tidx -1 2048 -1

It is up to you, choice is yours 😉
Click to expand...

Speaking of which, has anyone tested this firmware and can tell me if it is good and stable? You have to put these codes as script or just installing the firmware it comes with these presets? Hugs!
 
Alberth-OC said:
Hello everybody, I'm trying installing a custom firmware to my Yi camera and I unpretentiously by the high bitrate and of course 1080P @ 60FPS. I wish someone would give me some hint of a good custom firmware or script? For I am using the stock firmware of the camera (just do not remember the version now). I am looking for something around 40Mbps to 50mbps at 1080P @ 60FPS, someone can show me a good?



Speaking of which, has anyone tested this firmware and can tell me if it is good and stable? You have to put these codes as script or just installing the firmware it comes with these presets? Hugs!
Click to expand...
Woah slow down there 40-50 Mbits is a little to much for full HD @60fps
1. I don't know which camera model youk have, my 23L gets really warm with 35mbits.
2. Most SD cards will not be handle such high butrates.
3 Files will get huge and you SD card fills faster, copying and editing takes longer
4. Why do you need the super high bitrates anyway?
 
ccdff said:
Woah slow down there 40-50 Mbits is a little to much for full HD @60fps
1. I don't know which camera model youk have, my 23L gets really warm with 35mbits.
2. Most SD cards will not be handle such high butrates.
3 Files will get huge and you SD card fills faster, copying and editing takes longer
4. Why do you need the super high bitrates anyway?
Click to expand...

I'm interested in the same thing. I live in a colder climate, so my camera doesn't get warm at 35 mbps. My sd card can handle 50 mbps and I have plenty of room. What I'm wondering is if there is a noticeable difference between 35 and 50 @ 60 fps and @ 30 fps. My main gripe with the Yi is the huge detail loss at 60 fps, I shoot exclusively in 30 due to this.
 
1 quick question about the modded firmware - I know it's possible to set a camera knee and BT.709 transfer function, but is it possible to redefine the transfer function?
 
Onion said:
I'm interested in the same thing. I live in a colder climate, so my camera doesn't get warm at 35 mbps. My sd card can handle 50 mbps and I have plenty of room. What I'm wondering is if there is a noticeable difference between 35 and 50 @ 60 fps and @ 30 fps. My main gripe with the Yi is the huge detail loss at 60 fps, I shoot exclusively in 30 due to this.
Click to expand...
What are your problems with 60 fps? Mine works perfectly with 35 Mbits. I have maximum (64 GB) and when I'm out shooting footage all day I carry a second SD card for memory. I think 50 Mbits would be a true overkill
 
ccdff said:
What are your problems with 60 fps? Mine works perfectly with 35 Mbits. I have maximum (64 GB) and when I'm out shooting footage all day I carry a second SD card for memory. I think 50 Mbits would be a true overkill
Click to expand...

I'm not home right now but in my testing at close range I've noticed a lot of lost sharpness going from 30 to 60 fps. I'll post screenshots of video later and you'll understand better.

Memory isn't an issue. I have 3 Lexar 633x 64 gb SD cards (used to have 3 GoPro Hero 3 Silvers) and only one Yi. I tend to avoid recording huge amounts of footage because it makes my life much easier when it comes time to edit it, so I rarely run into memory issues.

An hour of video at 50 megabits is only 22.5 GB, I'd get almost 3 hours of footage per SD card. It's more than enough for me in a day, even if I just had one card.
 
Hello guys, got a newbie question to ask here...
I've read all pages of this article~
and i've already known that if i want to change the bitrates of certain resolution..i should use scripts like writew etc.

and is it possible to switch among certain resolution through scripts instead of changing it from the app?
because i also suffered from video split problem no matter i use custom firmware or scripts...
i would like to avoid using app as possible as I can.

I once saw a reply here which said using the "writeb xxx" to set the resolutions at booting.
but if the resolutions i want to use, like 108060 to 72060, are already contained in the app
should i still use writeb function to switch between them during every boot??

Plz help me out!!
 
punish1985 said:
change the bitrates of certain resolution..i should use scripts like writew etc.
Click to expand...

no for changing resolution I suggest using firmware and special software

punish1985 said:
switch between them during every boot??
Click to expand...

I still don't get whats wrong with the app for changing resolutions. Can maybe give a real world example where u use this ?
 
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