yashsingh1/xdaforums huggingface dataset:
[LeEco Le Max 2 Questions & Answers] TheLastCanadian:
Yes. Ultimately, the scanner works. :good:

It's just not as consistent as I like, you often have to double-swipe. :silly:
[LeEco Le Max 2 Questions & Answers] coolkillermax:
Noted & thanks
[LeEco Le Max 2 Questions & Answers] coolkillermax:
Le max 2 front facing camera

Hello All,

Le max 2 front facing camera is it fix focus or auto focus ? ? :confused:
[LeEco Le Max 2 Questions & Answers] bwalter:
I believe it is fixed focus.
[LeEco Le Max 2 Questions & Answers] AhmadSant:
It is auto focus.
[LeEco Le Max 2 Questions & Answers] dimmebd:
The X829 is so called International Variant, I don't know exactly the difference, but if you are not from China or India, this one is the better choice.
[LeEco Le Max 2 Questions & Answers] coolkillermax:
:what::what::confused::confused:

who correct ？
[LeEco Le Max 2 Questions & Answers] castuis:
Front cam is fixed focus
[LeEco Le Max 2 Questions & Answers] AhmadSant:
again it is auto detect your face or group of faces, then it make auto focus.

fix focus !?!?! do you mean Manual focus?
[LeEco Le Max 2 Questions & Answers] bwalter:
Based on this review it's fixed focus (and the reviewer complains to focus point is too close): http://www.techphlie.com/2016/06/le-max-2-camera-review.html

Also, I found that "tapping" to "focus" is only setting exposure in Google Camera app, not focusing. I haven't tried with stock ROM, but I'm pretty confident it's fixed focus.
[LeEco Le Max 2 Questions & Answers] thetrukos:
It has Fixed focus.

Just watch.

https://youtu.be/OuGcQVqi1VM
[LeEco Le Max 2 Questions & Answers] AhmadSant:
OK thanks, I got the idea :)
[LeEco Le Max 2 Questions & Answers] coolkillermax:
So complicated... Lucky i no choose this phone... Anyway thanks who give correct information...
[Nexus 9 General] ElementalXY:
I'm highly anticipating your video and this is absolutely fantastic news! I have 2 questions for you however since I'll be a little new on this installation:

1. Was the RAM module that was made from Samsung released? If yes is there a way to order it? I highly believe that with 8gb of LPDDR3 this tablet has a huge potential for future proofing and will eliminate the need to buy a tablet for a long long time.

2. Are there any specific tools or equipment I need to buy in order to follow your installation?

I'm highly looking forward to your reply and thank you so much for the upcoming guide.
[Nexus 9 General] USBhost:
Following....

Looking forward for that video.

I'm quite excited!!

4/8G on a tablet!!!

When is that 8G chip coming out?

https://www.avnet.com/shop/us/p/mt5...5626301278?CMP=EMA_Octopart_inventoryfeed_VSE right? Where did you get yours ?
[Nexus 9 General] Extreemator:
I seriously doubt that 8gb would bring anything more comparing with 4gb. I think the main bottleneck is cpu architecture. It's very strange that 2 strong cores stutter more than some 8 core cpus. Nvidia doesn't have as large experience with cpus and has made mistakes, while it has largest exps with gpu.
[Nexus 9 General] Masteryates:
Firstly, let me say, well done. :highfive:

Someone had to do it and you were brave enough to put your money on the line. Respect. :cool:

Any idea how you upgrade performs compared to a standard Nexus 9? It would be cool if you could get another and do a side by side test.

A part of me wishes you could have just upgraded the RAM and compared to a standard Nexus 9 as we will never know which of your upgrades has the biggest effect.
[Nexus 9 General] Need4Sneed:
Just wanted to give everyone a quick update.

Work has been sucking up all of my time, but I have the day off tomorrow so I should be able to get the guide/tutorial up by the end of the weekend.

She's still running wonderfully, however I did decide to go the itty-bitty fan route just to see if there was a difference, and sure enough, I got my idle temp hovering around 30C - 35C, so I may add a step for an optional fan installation. I found a super slim battery pack and a 5V Raspberry Pi fan and it worked like a charm. I just need to figure out a way to tidy up the wiring.

Anyhoo, happy Saturday, and stay tuned!

:)
[Nexus 9 General] Marky__Mark:
Can we order these from somewhere? Everywhere i looked have zero in stock.
[Nexus 9 General] Jalh:
Looking forward for the video tutorial. While I do not have a tablet replacement for mine, I will still do this!
[Nexus 9 General] USBhost:
The thing I'm most worried about is flashing the firmware back to the new chip.

Things I think I'll need .

#1 A tool that can read and write to the chip so we can backup or restore.(those tools cost like 100$+)

#2 soldering iron or something to detach and reattach the chip.

PS. I'm really looking for that 8G ram chip.

I will need to compile a new kernel to support more than 4G but that's no problem.
[Nexus 9 General] brutalv4:
This memory eMMC NAND Flash chip KLMCG8GEAC-B001-BGA-64GB seems to be similar to ours. Just curious will this one fits? :fingers-crossed:
[Nexus 9 General] Marky__Mark:
Maybe Need4Sneed broke his tablet.
[Nexus 9 General] USBhost:
Maybe... ;)
[Nexus 9 General] ElementalXY:
Or maybe he doesn't have the time to make the video yet because he's busy with life. Let's wait and see. I'm optimistic nonetheless because in the case that happens he could have said it earlier and this thread would have been closed :).
[Nexus 9 General] Marky__Mark:
Maybe, maybe not. Im interested in this too, but Ill believe it when I see it.
[Nexus 9 General] ElementalXY:
I'm with you 100% on that :). Let's assume the best in either case scenario.
[Nexus 9 General] Vartom:
It seems that it is not as easy as the author tells us.

And I doubt that he has something that works, or he did at least what he writes about.
[Nexus 9 General] Marky__Mark:
He probably broke his tablet installing that fan and who knows what else.
[Nexus 9 General] albsat:
But it would a dream, upgrading this tablet to 4g ram and 64 gb storage,.. Too good to be true...
[Nexus 9 General] Marky__Mark:
At the very least, this guy can at least tell us where he got his.
[Nexus 9 General] USBhost:
[MENTION=5946231]Need4Sneed[/MENTION]

Are things ok?
[Nexus 9 General] acme64:
Nobody does all that work and writes a post without even a picture. BRB holding my breath
[Nexus 9 General] dictionary:
That's pretty dumb. Not everyone stops to take pictures, especially when they aren't even sure it'll work. The only thing that makes me believe it worked, even if temporarily, is I find it hard to believe someone would go through the effort. Took the time to post a rather lengthy post with part numbers and information. Usually the post wouldn't be so detailed. Still though, either it blew up, and they are hiding, life happened, or they got a kick out of getting a rise out if us. Smh
[Nexus 9 General] acme64:
id love to be proven wrong
[Nexus 9 General] Marky__Mark:
The thing to me that makes all of this sketchy is the availability of that part. I searched all across the internet and it looks to be impossible to get without buying 1000 of them. If he got his somehow by a hookup or some type of connection and is not available to purchase individually, he shouldn't be giving us this information in the first place.
[Nexus 9 General] Need4Sneed:
Hello everyone. I'm sorry I haven't been able to get everything up yet, been dealing with some personal issues, but I am going to be working on it this weekend. My main issue has been getting another N9 to do the mod with and I finally got ahold of one. I didn't document my mod, mostly due to the fact that I was unsure if it would work.

But, I now have another N9, and am gonna be hitting it this weekend.

The 4GB LPDDR3 chip is not as scarce as some are saying. I will list available sources with the video and tutorial. The sources you're looking at sound like bulk distributors.

I still don't have a source on the 8GB yet, so I can't help ya there, but the 4GB is plentiful.

Stay tuned.
[Nexus 9 General] USBhost:
I really want to know what program you used to flash the bootloader etc to the new chip
[Nexus 9 General] Need4Sneed:
I think there's some confusion regarding what I did. I did not put a new eMMC flash chip in my Nexus 9. What I did was remove the 2GB LPDDR3 chip and replace it with a 4GB LPDDR3 chip. They are pin compatible, and luckily for us, the Tegra K1 SoC doesn't use a package-on-package design where the RAM is on top of the processor (which is usually the case in mobile devices, especially Qualcomm devices, since they're made for a PoP setup, where the RAM is fused on top of the SoC). The RAM is just to the right of the SoC on the board, independent of the processor. The Tegra K1 (both the quad core and dual core Denver) can support up to 8GB of LPDDR3, or so the documentation claims. However, I could not find an 8GB LPDDR3 module, so I went for 4GB.

I have done nothing to the eMMC and/or file system; the flash storage remain the same. Replacing the flash storage with a larger eMMC chip is a lot more complicated, as you have to not only install the chip, but then you have to create the GPT table, the partitions, etc. It can be done, there's a guy here on XDA who upgraded his Nexus 5 from 32GB (it may have been 16GB, I don't remember) to a (maybe it was 128GB, again, don't remember) 64GB eMMC, and after a little bit of tinkering, he/she was able to get it to work. So it's not out of the question, but it is beyond the scope of what I am doing in this mod.

The bootloader, recovery, system, cache, data, modem, EFS, etc. are located on the eMMC/embedded SD, not the RAM. However, the eMMC module on our device is very accessible, so this might be something we could play around with in the future, but much research is needed before that can happen. :)

The "memory" that I'm talking about is the 'double data rate random access memory' (DDR-RAM, which in our case is low power, or 'LPDDR3') . . . . not the storage memory.

Android is smart enough to see the extra memory, and just works, or at least it did in my case, which I'm pretty sure means it'll work in any case.

Hope that clarifies. Stay tuned, gonna be doing the mod with proper documentation tomorrow.

-----------edit for clarity---------

I just realized that the confusion might be coming from the title of the thread. '16Gb' (gigabits) in the compatible block density for our LPDDR3 = '2GB' (gigabytes), just as '32Gb' with added block density = '4GB'. I actually wrote that to prevent confusion when looking for the correct chip because when you purchase chips like this, they are detailed in block size times gigabit density, not the "entire" density of the chip. My bad. Hope this clarifies.
[Nexus 9 General] USBhost:
Ahhh... I got you now!

ProTip you should change the title to "upgrade your 16/32GB N9's ram from 2gb to 4gb" or something like that.

"NEXUS 9 RAM UPGRADE 2GB to 4GB!!" Etc...

Now it sounds a lot more doable!

Thanks for the clarification!

In my understanding I thought the storage and the Ram where on one chip not separate.
[Nexus 9 General] USBhost:
https://www.arrow.com/en/products/mt52l512m64d4pq-107wtb/micron-technology maybe???

Man I really want to know how much this chip costs....
[Nexus 9 General] octagonPerfectionist:
Is it even possible to solder a BGA chip with so many pins onto such a tightly packed PCB with normal tools that don't cost thousands of dollars?
[Nexus 9 General] evolucion8:
Nice! I hope this works! I had been struggling with this tablet. Whoever came up with the idea of pairing a 64-Bit CPU and OS with measly 2GB of RAM deserves to be grand slammed! The 64-Bit OS is memory hungry, plus 128MB of that RAM is taken away for the Binary Translator for the nVidia Denver Cores used on this tablet. So when you open the Facebook app and one single Chrome tab, one will overlap the other and will refresh every time you switch over, losing its state, annoying as h3ll.

I installed another ROM and the default values are decent, but tweaking the following settings will improve your multi tasking performance albeit with a minor lose in performance when switching across tasks but will keep the tabs open and will maximize what is available RAM wise.

ZRAM - 512MB

Swappiness - 70

Dirty Ratio - 10

Dirty Background Ratio - 5

Overcommit Ratio 0

And then modified the Low Memory Killer values to force the RAM to load more pages from the apps instead of forcing the apps to swap just to have free RAM on which its known that free RAM is wasted RAM.

Foreground app - 24

Visible Apps - 30

Secondary Server - 36

Hidden Apps - 42

Content Providers - 72

Empty Apps - 105

All these values forces the RAM to be filled up with my apps and once I close all the applications, I always have around 1GB free as the System uses a lot of RAM for being a 64-Bit OS. But this was tested by me and that restored my multitasking feature on the tablet. If this 4GB RAM mod is doable, def this will be much better than trying to squeeze every ounce of the measly 2GB of RAM that it has.
[Nexus 9 General] Marky__Mark:
[MENTION=5946231]Need4Sneed[/MENTION] since you said you would put up a video tomorrow, which was a week ago...is the video on YouTube? Whats the name of the video?
[Nexus 9 General] rickneworleansla:
Update? I loaded the Official Lineage OS which was just released last week. So far it seems to be less laggy than stock with no issues.
[Nexus 9 General] lfrst05:
Adding my 2 cents to this topic:

8GB (64 gigabit chip):

To me it looks like Micron only offers up to 32Gb (4GB) LPDDR3 chips: https://www.micron.com/products/dram/lpdram

Other manufacturers - questionable if pin-compatible:

Samsung: up to 48Gb (6GB) chips http://www.samsung.com/semiconducto...e-dram/low-power-ddr3/K3QFBFB0CM-FGCF?ia=2394

SK Hynix: up to 24Gb (3GB) https://www.skhynix.com/products.do?ct1=36&ct2=41&lang=eng

Maybe the "up to 8GB" support mentioned in the datasheet means with multiple LPDDR3 chips.

Chip sources:

The link USBhost posted seems right.

This should be an European supplier that is a bit cheaper: https://www.avnet.com/shop/emea/p/mt52l512m64d4pq-107-wt-b-3074457345631595776 (not currently in stock)

BGA Soldering:

Its not easy to do at home, but absolutely possible e.g. by using a heat gun and a really steady hand.

https://www.youtube.com/watch?v=8qZVbyUfMuk

Image of the N9 board (iFixit): https://d3nevzfk7ii3be.cloudfront.net/igi/AnfYhy1AV4tHfONT

The orange chip is the LPDDR3. It seems to have come sort of glue around so it might be a bit harder to remove than a chip that is just soldered.

Let's wait and see how Need4Sneed did it.
[Nexus 9 General] Marky__Mark:
Maybe he broke his "another nexus 9" too...
[Nexus 9 General] USBhost:
Don't make me laugh lol
[Nexus 9 General] zxxrar:
i am from China

“MT52L512M64D4PQ-107 WT“ ,it‘s hard to buy

how about K3QF4F40BM-AGCF,comes from SAMSUNG

it is also 32Gb,and 1866mhz,253-ball

thank you
[Nexus 9 General] gk1984:
[MENTION=5946231]Need4Sneed[/MENTION] -- can you do a step-by-step write up at least? Pictures would be a plus. And where you got the RAM from? My N9 is having the screen flicker/white box problem and needs service anyway. While it's open, considering trying this since it's a severely under powered tablet. I'm not sure what tools I need to make this modification or if it's even within my skill level/comfortability.
[Nexus 9 General] zxxrar:
I bought K3QF4F40BM-AGCF (32GB=4GB, 1866MHz) chip, and has been replaced. But the boot still shows 2G of memory. I don't know why. My N9's system is Android 6.0, does it need a modified version of the kernel? Or is the chip incompatible? I ' m highly looking forward to your reply
[Nexus 9 General] Vartom:
You need a new kernel with support for this chip and its volume. That might help.
[Nexus 9 General] USBhost:
I'll get right on it!

But I do have my doubts..

Anyways cheers for your bravery!

Edit: [MENTION=8440294]zxxrar[/MENTION] its up!

please let me know if it worked

Edit:... time ... is ... killing ... me .... need ... to .... know .... !!!!!

if it works or not can you give me your kernel boot log.

just after boot do "dmesg > /sdcard/ksm.txt" give me that file

Edit: testing my patience are we.....
[Nexus 9 General] Marky__Mark:
You the man, [MENTION=5501864]USBhost[/MENTION]
[Nexus 9 General] USBhost:
I am thinking about buying a N9 Logic Board so I can test this mod...

http://www.ebay.com/itm/HTC-Google-...ef034f0&pid=100623&rk=2&rkt=6&sd=142173261593 for only 30$ not bad

Anyways it's just me thinking...

I have a heat gun so unsoldering will not be a problem.

But... Removing it.... That will be a problem.

I have nothing to steadily move it up straight.
[Nexus 9 General] zxxrar:
:crying::crying::crying:

it also shows 2G ram,after installing the zip you give me. i don't konw what i should do

here is the boot log file.

anyway, thank you~
[Nexus 9 General] USBhost:
... Gerr the log was not fully there ...

Can you do this.

Just reboot twice.

Then give me "cat /sys/fs/pstore/* > /sdcard/ksm2.txt"
[Nexus 9 General] Larva-Su:
how is this project going?
[Nexus 9 General] zxxrar:
sush: cat: /sys/fs/pstore/*: No such file or directory

there are no files in /sys/fs/pstore
[Nexus 9 General] USBhost:
Are you sure???

What do you get when you do.

cd /sys/fs/pstore/
ls
[Nexus 9 General] zxxrar:
i am sure

i will reinstall system and try again

[IMG="https://xdaforums.com/picture.php?albumid=14358&pictureid=56005"][/IMG]
[Nexus 9 General] USBhost:
No no need.

Do you have adb Handy?
[Nexus 9 General] zxxrar:
it's OK when i retry

thank you
[Nexus 9 General] Larva-Su:
Hi man, did you see the last attached of zxxrar? waiting is killing me!!
[Nexus 9 General] USBhost:
... No one saw anything....
[Nexus 9 General] Larva-Su:
this is the last document .

---------- Post added at 08:57 AM ---------- Previous post was at 08:55 AM ----------

sorry for the dad network, the ksm2.txt is the last one
[Nexus 9 General] Larva-Su:
please see this attachment [MENTION=5501864]USBhost[/MENTION]
[Nexus 9 General] madbat99:
He was joking dude.
[Nexus 9 General] USBhost:
[MENTION=7927707]Larva-Su[/MENTION] [MENTION=8440294]zxxrar[/MENTION]

are you the same people?

[MENTION=8440294]zxxrar[/MENTION] are you sure you replaced the ram with the one you got?

not accidentally put in the old one back?

reading that kernel log is making me think that.

Anyways im working on a compiling a program that will read the ram chip info

to see whats up.
[Nexus 9 General] zxxrar:
i don't know him. maybe he is a member of Chinese Baidu nexus9 Post Bar

i started a thread about “I might be the first man to upgrade 4Gb in China”,and i said “I asked for help on XDA“.

so they are looking forward to my success

i'm sure i replaced the ram with the one i bought

later,i will show you the photo about the chip on board
[Nexus 9 General] USBhost:
OK thanks.

ONLY YOU [MENTION=8440294]zxxrar[/MENTION] FLASH THIS. MAKE SURE YOU BACKUP YOUR BOOT IN TWRP.

i manually changed the ram size.

Edit: [MENTION=8440294]zxxrar[/MENTION] was that pic https://xdaforums.com/picture.php?albumid=14358&pictureid=56029 the one you removed or was it the one you put in? because that one does not look like the stock ram chip.

https://www.ifixit.com/Teardown/Nexus+9+Teardown/31425#s73321

https://d3nevzfk7ii3be.cloudfront.net/igi/AnfYhy1AV4tHfONT.huge
[Nexus 9 General] zxxrar:
:crying::crying::crying:i got into bootloop after installing the zip

here is the photo about the ram on board.

i wonder why Need4Sneed was successful,the chip i bought is same to Need4Sneed's ( MT52L512M64D4PQ-107 WT )
[Nexus 9 General] USBhost:
Gerr.... I must have goofed on the zip.

I will have a new one up later tonight.

Just restore your boot and you'll be fine

Thanks for the pictures!

Edit: no build tonight.. sorry things came up.

I will do it was soon as I can!

Edit: Sunday i should have time!
[Nexus 9 General] Marky__Mark:
Who says he was successful. His silence might mean he wasn't.
[Nexus 9 General] Monazite:
I think it may be a bootloader problem, for stock bootloader can only read 2048MB RAM(his photos). You'd better modify the bootloader and try again. [MENTION=5501864]USBhost[/MENTION]
[Nexus 9 General] Larva-Su:
Sunday is coming soon~hope we can reborn the Nexus 9 !
[Nexus 9 General] xmadxpenguinx:
Any updates? I hope that this is successful. Would be the first tablet I have had for over a year...
[Nexus 9 General] tabormeister:
Really hoping this is legit
[Nexus 9 General] ZehelSitchel:
What a roller coaster of a thread! Hopefully [MENTION=5946231]Need4Sneed[/MENTION] has everything he needs to continue the project. Let us know what your hangups are and thanks for the courage to try this mod!
[Nexus 9 General] Monazite:
[MENTION=8440294]zxxrar[/MENTION] made a mistake. Today I went to micron website and looked for this RAM. I found zxxrar's RAM is WFBGA package while Nexus 9's RAM is VFBGA package. The 4GB VFBGA package RAM should be MT52L512M64D4PQ-107 WT which can be ordered in taobao. I tried to tell zxxrar in Baidu tieba but tieba always deleted my posts. I hope he can see my posts in XDA and try again. N9's future depends on you! ☺️
[Nexus 9 General] USBhost:
So would that explain why it didn't work fully ?

Can you post the correct link?
[Nexus 9 General] Monazite:
1. The difference between VFBGA and W(VV)FBGA is the distance of ball grid in RAM. WFBGA is shorter. So I guess PCB can only read half of balls of WFBGA. (Im not sure)

2. What's the correct link?
[Nexus 9 General] Vartom:
I think this venture is doomed to failure. Since we need to edit the contents of the access sections and the source codes of which we do not have and will not.

Once again, I recall the link which mentions what it would be necessary to do.

This is the same trap as psci02. Not having full source codes from the TOS section. Any attempt to edit the bct section can turn the tablet into a brick.
[Nexus 9 General] zxxrar:
i am sure.The RAM i bought is MT52L512M64D4PQ-107 WT (VFBGA)

my nexus9 is runing very slowly, since i replaced the ram.
[Nexus 9 General] Vartom:
This is because the new chip works with timings designed for the old chip.

It's almost like a PC in the timings settings for memory modules. But here these timings are in the section of the bсt and kernel.
[Nexus 9 General] qnc:
waiting for the video
[Nexus 9 General] Heimdall9:
Any notices?

Enviado desde mi Nexus 9 mediante Tapatalk
[Nexus 9 General] panamamike:
Could you explain or demonstrate how you managed to swap out the memory chip? That itself is an interesting accomplishment.

Mike
[Nexus 9 General] gk1984:
OP must have died in a Nexus 9 explosion or something because he has not responded or fulfilled promises or requests to show others how this is done. Been completely silent since bragging about this feat.
[Nexus 9 General] Marky__Mark:
I wont believe it till I see it.
[Nexus 9 General] Xharos:
Op, are you alive? Can you post proof of this?
[Nexus 9 General] unimatrix725:
Would you consider doing this as a service? I can barely solder. I could do a heatsink mod.
[Nexus 9 General] Jalh:
At this point is safe to assume OP has no plans on releasing this information.
[Nexus 9 General] Marky__Mark:
I dont understand why people keep replying to this thread. It should be shut down.
[Nexus 9 General] keviladele:
Download more RAM free

I have successfully downloaded more free ram
[Nexus 9 General] madbat99:
Downloaded? Funny. There are better ways to get your post count up.
[Nexus 9 General] HZDJ233:
My English may not be very good.I have a 64G EMMC5.0 removed from XIAOMI 4.The EMMCs of XIAOMI4 and NEXUS9 are all BGA153 packages. Can they run on NEXUS 9?Also, do you need to refresh the core or system after upgrading 4G chips?
[Nexus 9 General] Xharos:
We don't know, since OP dissapeared. Please try and let us know if it works.
[Nexus 9 General] HZDJ233:
I found this "Full 4GB physical memory support" in the kernel configuration options. Have you opened it?

---------- Post added at 01:59 PM ---------- Previous post was at 01:58 PM ----------

I found this "Full 4GB physical memory support" in the kernel configuration options. Have you opened it?:confused:

---------- Post added at 02:19 PM ---------- Previous post was at 01:59 PM ----------

Can you provide your kernel configuration file?