yashsingh1/xdaforums huggingface dataset:
[Shield Tablet Q&A, Help & Troubleshooting] Eloquence:
There are a couple options

Great to see some people still getting benefit from this tutorial! A lot has changed for me and "tablet" Android gaming over the past year. Basically my journey went like this - Nvidia Tablet K1 => Huawei Mediapad M5 => Honor Note 10 => Huawei Mate 20X.

Now I love the 8" form-factor, but couldn't find the power to play all games that I wanted for several years to come. I could have gone with the Xiaomi Mi4, but it was a little slower (in RAW processing power) than even the Mediapad M5. I like the Kirin set of chipsets, even if their GPUs aren't as great as NVidia's or Snapdragon's, but they have great optimization for their hardware.

Also the Mate 20X is a little more portable while still having a "somewhat" big screen compared to the tablets. If I was really hardcore about gaming on a tablet, there's little reason *NOT* to go to Apple, as they JUST refreshed the iPad Mini, but I love Android too much to ever consider doing that ;)

Anyhow, I'll wrap up this long post saying the main reasons I switched, even though the Shield Tablet K1 was one of the best Tablets I have ever owned -- It came down to battery life. I couldn't get more than 2.5 hours of screen on time for most games, whether they were through GRID, native Android, or emulation. My Huawei Mate 20X gets about 9 hours of screen on time while gaming, and that's on a BAD day (most time I get like 10 hours or so). So, a massive 5000 mAH battery with a 7" inch screen is a win for me, while the processor is super fast, and the screen is good. Plus, being able to play certain games on the Play Store (like Final Fantasy XV Pocket Edition) that I couldn't on the Shield Tablet K1, was awesome. That's why I left the Shield Tablet behind. :crying:

Enjoy those Tabs while you can! Shame that Samsung discontinue the Galaxy Tab S series 8.4 inch devices... would've bought that instead last year. :cool:

-Elo
[Shield Tablet Q&A, Help & Troubleshooting] drarbo1:
I changed mine out as well. Found a comparable sized 6000mah battery, 3.8v, on AliExpress. It still says it's a 5100mah on cpu-z as I reused the old battery's circuit board, which I assume tells the device what it is. Not sure if I see a great increase but it is up and working. No heat issues, other than gaming which it always got warm gaming something like Half Life or Oddworld.
[Shield Tablet Q&A, Help & Troubleshooting] bigcletus:
How as your battery life been since the replacement compared to stock? I think my original battery is starting to fade, it gets relatively hot and loses charge fast now on the original battery. Do you have a link to the one you installed? Thanks.
[Shield Tablet Q&A, Help & Troubleshooting] drarbo1:
I bought this one, https://www.aliexpress.com/item/32807442206.html?spm=a2g0s.9042311.0.0.78584c4dqP3CHO. I really can't say I was super impressed but it's not dying fast, which I believe it was. I took it and my son's, he almost never used his but just about as old, we have the original models with the stylus, anyway I put them side by side with the same 24 hour rain YouTube video and they lasted about exactly the same. I can't remember how many hours of that YouTube play they lasted, maybe around 5-6 hours straight. It's been a while since I did that experiment.

---------- Post added at 03:42 AM ---------- Previous post was at 02:53 AM ----------

There are two connections from the original battery to the battery logic board. I pried them off and just soldered the two leads from the AliExpress batt and used some tape to keep it in place. Plenty room for this new batt. I did not dissect the new batt to remove the board it comes with. The tablet does get warm gaming more intensive games, but not unlike it did prior to the batt swap. Pretty much the back gets warm but I'm not sure that's the batt or the processor. I did see some heat sync paste back there but no real metal for it to dissipate to. Doesn't get any warmer than my LTE model I haven't changed the batt on.

---------- Post added at 03:48 AM ---------- Previous post was at 03:42 AM ----------

And when I swapped the batt I had to plug the power cord in to get it to come on. Then I unplugged it to completely drain the batt. I read somewhere to do that the first time then recharge, leaving it for a good day. I still go in my settings and select no more than one background process and a custom power setting with 1 to 4 cores, 1 when there's little demand, and I think I limit my fps to 30, without looking. I'm writing from the very tablet now.
[Shield Tablet Q&A, Help & Troubleshooting] mirrin:
What about Nintendo switch batteries too thick?
[Shield Tablet Q&A, Help & Troubleshooting] Snah001:
I ordered this battery 2x a week ago because I have 2 original Shields and waiting for delivery now.

Will report here after I swapped the original battery for this one.
[Shield Tablet Q&A, Help & Troubleshooting] drarbo1:
Yeah, I saw someone on eBay selling that very battery for over $30. Probably buys them like I did and sells them for more on eBay.

---------- Post added at 02:24 AM ---------- Previous post was at 02:20 AM ----------

I'd say that the most important item in that tablet, if it is inoperable, would be that battery logic or protection board. It has 4 wires which I might know what three of them are for but not the fourth. I think a green wire. And because I reused that battery board, it will still show up to the tablet as a 5100mah battery, no matter the size you connect to it.
[Shield Tablet Q&A, Help & Troubleshooting] Snah001:
I replaced the battery (the one that was posted above from Aliexpress) of one of my Shield Tablets and it fits nice.

Only precaution you must take when removing the back is that there is a flatcable connection between tablet and back for the stylus recognition.

When it breaks no big issue just the stylus is not activated anymore when you remove its from the storageplace.

Also it is a delicate job to remove the small circuitboard on top of the battery because it is very tight packed with sealtape.

Don't desolder the 4 wires going to that board and just remove the board very carefully from the top of the battery.by cutting the 2 connections to the battery itself.

On the circuitboard it is written B+ for the red wire from the new battery and B- for the black wire.

Ré-attach the new wires from the new battery to the 2 terminals and wrap them preferably with shrinksleeves.

You can then store the circuitboard next to the new battery and cover it with duct tape or something like that.

Then press the back gently back to the tablet and done.

I paid USD 22,50 for 2 batteries including shipment.
[Shield Tablet Q&A, Help & Troubleshooting] visage01:
I want to replace the battery but I have problems with opening my tablet. How do I fix it?

Sorry, the answer was earlier given in this forum...
[Shield Tablet Q&A, Help & Troubleshooting] Snah001:
Check here on YouTube the ifixit Nvidia shield tablet battery replacement:

https://nl.ifixit.com/Device/Nvidia_Shield_Tablet_K1
[Shield Tablet Q&A, Help & Troubleshooting] droidan10:
I was wondering what those 2 other smaller wires are too. Must be for data only based on the small gauge.

What will the small grey wire be that you have an idea about?

I'm looking into getting rid of the battery altogether to run my K1 off USB power only. Battery had always been the K1's weakness. From the original battery getting recalled, to the crappy battery life even on my updated ST8 model battery, to running hot all the time, and now my ST8 battery is bloated too and looks pretty shady. I'm not sure I want to replace the battery anymore and looking for solutions to go plug in USB power only.
[Shield Tablet Q&A, Help & Troubleshooting] AlexC_01:
I have successfully replaced my battery yesterday.

The old battery wouldn't charge anymore and now it does.

So far i am happy with it.

Hopefully it will hold up for another 2 years because i am very happy with the tablet.

Thanks for the great write up on the change process.

(y)
[Shield Tablet Q&A, Help & Troubleshooting] jbach44:
just purchased a K1 off ebay (lte model 32 GB, Stylus etc..) battery holds a charge, accubattery shows its at around 53% health (system say its a b01) debating if I wanna try a battery swap yet or wait and see (I know its an older tab, but I like nvidia stuff, and collect older systems)
[Shield Tablet Q&A, Help & Troubleshooting] MaRtYy01:
I also got mine second hand a few months ago, 16gb Y01 model. My original battery was on ~55-60% health.

Definitely worth a replacement if you are gonna actively use it. This device, however, has the hardest battery replacement out of any smartphone or tablet that I have seen until now.

First I purchased a xiaomi mi max 3 battery, removed the controller but failed to solder a wire to one of the battery tabs. The solder just kept refusing to stick to it. Nobody tells you that but its very hard to solder stuff to alluminium without special flux and solder.

Long story short-15€ wasted. The battery did fit well in the tablet however, so if anyone else wants to try they might have better luck.

After that I ordered an "Easylander" 5400mah battery out of aliexpress, didn't wan't to buy a chinese battery, however no proper battery replacements exist for this tablet. This company has a somewhat decent rating on aliexpress, so after looking at everything else I decided it's the best bet.

Temporarily for a month I used a battery that I ripped off one smashed and dead tablet that I had laying around, I think it sas Prestigio grace 3157. This was merely a 2800mah battery, however it worked perfectly in the tablet and supported peak performance. The two charging circuits worked together with no conflicts. Obviously that battery is small so it lasted similar time compared to the original one. At least the tablet was lighter.

Yesterday the easylander battery arrived. Well, this time I wasn't so lucky because the charging circuit of this battery doesn't want to cooperate with the nvidia shield one whatsoever. If I run cpu throttling test even for a few seconds it straight up cuts off the voltage and shuts off the tablet, I suppose that might happen during realistic heavy workloads too. The battery percentage report is also somewhat dodgy, dropping a little too fast, then going back up after I leave the tablet unused. Despite that from my brief charging test I would say that the cell itself is decent capacity, however, considering that I still haven't fully tested the battery, this isn't confirmed information.

I suppose I will have to bite the bullet and try soldering to the alluminum tabs again, since I messed up the first battery I tried soldering wires to the original shield battery tabs and that worked smoothly. So I might have better chance doing it now.

You mentioned that you just like collecting old nvidia stuff, etc if you are not gonna actively use the tablet it is absolutely not worth the effort to do this bs. Nvidia is at fault here, if this isn't planned obsolescence then I don't know what it is. Other users reported that the tablet doesn't even fully boot without the original charging circuit and that is why we have to go through all this, removing controllers from some batteries, soldering wires to alluminium, etc. Ideally it could have been a normal battery with a connector of course.

View attachment 5701559
[Shield Tablet Q&A, Help & Troubleshooting] MaRtYy01:
A quick update- removed the charging circuit and barely managed to solder wires to the battery contacts. As expected, the charging circuit was the issue. You can see from the pictures, it looks tiny and probably lacks a lot of chips. Now with the battery directly wired to the shield tablet charging circuit it supports peak performance and works as intended. Being 3.7v instead of 3.8 doesn't seem to matter, that is another thing I learnt from the temporary prestigio battery which was also 3.7v.

A quick side note-I'm not proud of that shield charging circuit placement as it's close to the cpu and the battery temp sensor will report slightly higher temps that usual.

Capacity is far from the promised 5400mah, at ~4000mah. I would have been happier if it was a bit more, like ~4500mah but I guess this will do. With moderate usage,-watching youtube, anime in browser, chatting, web browsing at ~60% brightness it lasted from 100% to shut down 4 hours and 15 mins, which I consider acceptable now. I'll keep monitoring it, maybe the capacity will improve with time, although tbh I doubt that.

Maybe for someone else seriously looking for a battery replacement it's worth purchasing a BM51 battery from Mi Max 3, Nohon ones from aliexpress are apparently good quality. I would have probably done that but I didn't feel like risking again by soldering wires to the bare battery contacts(which I ended up doing anyway). My soldering iron is pretty crappy and that is also likely a part of the problem.

Edit: I was thinking now, it is actually not well documented whether the BM51 battery will work in full capacity or not, looking at 4pda forum with translator for source feedback. That battery is intended with a 4.4V charge limit but the shield circuit will only charge it to 4.2V, so I wouldn't be surprised if in reality it isn't much better. Still worth the shot, I doubt that it would be worse than a dodgy generic battery.
[Shield Tablet Q&A, Help & Troubleshooting] moonhop7:
I appreciate your research on this because I have struggled with whether to replace the battery in these as well. What's working for me right now is using the official WIFI edition stock rom on both the K1 and the shield LTE. The battery life on both these has vastly improved by doing this and disabling all "unnecessary" notifications , Google background sync, high accuracy location and WIFI scanning. I agree that NVIDIA really made a poor choice with this battery and they are on the brink of becoming e-waste as a result. Luckily these are still very viable as there are work arounds and custom roms available . I have written NVIDIA several times now about possibly release one last android update for these as they eventually will become incompatible with Google Play API's/ Services.

It's weird though, these are still some of the best gaming tablets ever made. The sound is incredible and I've been able to get all the major cloud gaming services to run on them. The Shield portable is also still a daily driver for me as a handheld.
[Shield Tablet Q&A, Help & Troubleshooting] FoneWatcher:
Delete plz
[Shield Tablet Q&A, Help & Troubleshooting] MaRtYy01:
Nvidia doesn't care about the nvidia shield tablet, I don't think they ever did, it is more or less a device not made to last on purpose. Crippled by messed up ram and battery aging. So no matter how much you write to them they won't even release an update to fix the garbage firmware which has freakin 500mb reserved vram, unlike any other android device that I have used(that is my explanation, although not certain) or some sort of another ram leak, let alone an android version update.

Yeah, I agree, it is truly an amazing gaming tablet with superb speakers, really good gpu, physical hdmi port but in the end what it offers is just not worth the trade off with the cons. Only if I knew what pain in the ass this tablet would have been, I would have gotten a samsung galaxy tab S 8.4 instead, yeah it doesn't have front speakers or physical hdmi, the soc isn't as strong as the tegra k1 one but in the end it has a better amoled screen, normal battery, much more ram(which wouldn't be leaking too, I hope), can still output picture with an MHL adapter, supports newer android versions better.

I'm using latest 2021 unofficial build of lineage os 14.1 with all tricks in the book to squeeze most battery life and performance out of the tablet-no gapps, very light low memory killer, 300mb zram(from further testing, adding more didn't help), governon powersave, KSM on. With this setup the tablet provides satisfactory performance and battery life for day to day tasks. I wouldn't even bother with the stock or any stock based rom, it is a **** experience, reminds me of using nexus 7 2012 on its stock 5.1.1 rom. Both tablets receive a huge speed and battery life boost from using a clean custom rom without gapps.

I would have probably used swap memory instead of zram(just because the ram situation is so bad on this tablet) but this rom/kernel isn't letting me create swap on the sdcard and I don't want to beat up the emmc further.

Anyway to add something to the topic, after more cycles the aliexpress battery capacity didn't change at all.
[Shield Tablet Q&A, Help & Troubleshooting] FoneWatcher:
Iagree the battery problem was heinous, but strongly disagree it was planned obsolescence, based on my experience. Huang wanted the tablet to succeed and from bothbusiness standpoint, but also pride standpoint, he didn't like the hit on Nvidia reputation because of the battery problems, primarily. But also, the tablet market never took, anyway.

However, being a new player in tablet devices, Nvidia had to settle for lower-QC second-tier suppliers, which will always have more problems.

I had my prestent K1 get replaced by Nvidia very late in production for a swollen battery over 2 years ago and they must have switched to a better supplier because it's still not swollen and shows 89% life.
[Shield Tablet Q&A, Help & Troubleshooting] moonhop7:
Custom roms run very well on these and I have tried a few . I don't mind the stock rom, now that I have on that works because I use these as gaming tablets. My biggest concern is that I'm locked in at android nougat. I do enjoy running the older NVIDIA games on these which don't seem to run on custom firmware lol. I'm glad however that you are able to get some good use out of yours though and maybe I will consider trying a new rom out to see how it goes.

I don't feel that NVIDIA was apathetic to these tablets, infact it was more a matter of timing and the changes in hardware. NVIDIA also went through a huge debacle with the battery / recall issue and to the companys credit was very good about handling the RMA up until very recently as I recieved a replacement K1 from them last year, years after the devices where end of life due to a bad battery. :)
[Android Q&A, Help & Troubleshooting] Petrrr:
Zdravím,...nemůžu nikde sehnat roomku pro Acer Liquid Z 520 V ČEŠTINĚ..

pomoc....

-=-=-

Hello, ... I can not find a room for Acer Liquid Z 520 in CZECH .. help ....
[Honor 8 Pro  Questions & Answers] dsmith16:
Does honor 8 pro have laser autofocus... The official page says it has but unlike the one in lg g3 it is not visible...
[Honor 8 Pro  Questions & Answers] Mohansai22:
No it has only PDAF

no laser AF
[Honor 8 Pro  Questions & Answers] dsmith16:
So the information on the official site is false? Even the moderator onthe honor community said it has...
[LG V30 Guides, News, & Discussion] SGCMarkus:
Hey everyone :)

So... because i rather made a "big" of breakthrough today, im gonna share my progress on various projects.

My progress on LineageOS 15.1 (and GZOSP and CrDroid, didnt try more yet) all work pretty fine, basically everything works. Theres just 1 annoying thing (which im hunting down since easter). It can crash rather often during boot. Means: it freezes and then reboots.

See for yourself:

https://www.youtube.com/watch?v=rUUopOYDYjs:

[YOUTUBE]https://www.youtube.com/watch?v=rUUopOYDYjs[/YOUTUBE]

https://youtu.be/l7HEMIreVwE:

[YOUTUBE]https://youtu.be/l7HEMIreVwE[/YOUTUBE]

A video of CrDroid (recorded with my OnePlus 2 lol)

https://youtu.be/d5XGM9xCrqE:

[YOUTUBE]https://youtu.be/d5XGM9xCrqE[/YOUTUBE]

I also managed to create a seperate vendor partition (yes, i actually repartitioned) by making /system smaller (had 1.5GB left even though on full stock rom, not debloated a single bit). Made it 512MB in size.

This allowed me to actually use it (mount in kernel), and i managed to (nearly) bring Treble support to the V30 :)

With nearly i mean that the GSI boots, but the process "system" crashes (2 libs missing, need to see how i get them to /vendor, currently they are in /system of my lineage build)

The libs are called android.hidl.base@1.0.so and vendor.display.config@1.0.so

Here a video of LOS15.1 with Treble Check (yes, that prop can be faked, i know, and its only half true so far i guess)

https://youtu.be/MUNij0sspKM:

[YOUTUBE]https://youtu.be/MUNij0sspKM[/YOUTUBE]

What im hoping to achieve with this post:

1) Maybe get a few more people interested in testing (i really need more testers, only have 1 atm, and i need my phone rather often)

2) share my progress, making people hope that the V30 development isnt completly dead

3) Hopefully get a the attention of a few more devs, so we can figure those boot issues out (the reason i didnt release it yet, as it sometimes also freezes when you have gapps flashed)

best regards :)

SGCMarkus

PS: Ask all the devs you know, maybe someone knows the issue too, and knows a way to fix it :D

PPS: idk why the embedded youtube links dont work, but i put the links there on their own
[LG V30 Guides, News, & Discussion] liushangrong:
Expect it to be used everyday! Beautifully
[LG V30 Guides, News, & Discussion] brolic925t:
Wow good work. Hopefully tmobile varient will get recovery someday [emoji849] miss experimenting with roms. Stock on v30 is good with a theme but sometimes i miss custom roms
[LG V30 Guides, News, & Discussion] SGCMarkus:
So.. tested a build from last night fast before i rushed to the train ?

The GSI now boots successful and seems to be stable. Everything except haptic feedback/vibrator seems to work (i know the reason for that, as it loads the aosp implementation first, but the v30 needs the lge implementation in vendor)

Only saw wifi, bt, nfc was on, had signal (and asked for sim pin), and checked if camera had a preview, it did :)
[LG V30 Guides, News, & Discussion] Doblix:
Wow that is really impressive, so if I got you right you have treble working completely beside the vibration?

How stable does it run after a successfull boot?

Is it possible to switch between Stock and Linage after repartitioning?

Are you planing to release pre alpha images too for testing?

I ask too many questions I guess :D
[LG V30 Guides, News, & Discussion] SGCMarkus:
stock works normal (use that for now as daily driver), it just ignores the new partition. Also had 1.5GB or so empty space before repartitioning in /system, so that shouldnt be a problem if i used 512MB for that.

Idk how stable it runs yet... i just tested if it boots without errors this morning, restored my backup, and left for university xD

You can have Lineage builds (without treble), but its annoying if it sometimes take 20 tries to boot... and sometimes boot successful 2 or 3 times after another.

Those with treble need (for now manual) repartitioning... have to figure out how todo that without a Linux PC (vm also works) :P
[LG V30 Guides, News, & Discussion] Doblix:
I would be interested in testing the treble ones if possible, if you can guide me how to do the repartitioning or what tools to use that would be no problem for me.

I solely use Linux on my PCs (Arch if that matters) so that is no obstacle for me.

A nice and user solution would probably be a flashable .zip file for TWRP which does the repartitioning directly on the device.
[LG V30 Guides, News, & Discussion] Klimos:
Excited

I'm really excited to get Lineage OS onto my V30. But I just don't think I can make the transition until the Camera is ported. The the only app which can utilize both sensors, 4k video recording and laser focus. I use the ported G camera for pictures right now because of HDR+, and it can record 240fps slow mo. But it can't record 4K video. There is just nothing which can fully replace the stock LG app and use all the camera's hardware properly. Even things like open camera can't use Laser focus. So I just can't make the switch until the LG camera is ported. Also I hope that the QuadDAC will be supported.
[LG V30 Guides, News, & Discussion] SGCMarkus:
GSIs also dont seem to have the boot issues for some reason....

So its neither the ramdisk, nor kernel, nor vendor files.... something in my device tree is wrong then xD

PS: added a poll :)