yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] KappaTheCapper:
Nougat might perform badly because I heard there are issues with performance on nougat. For me on marshmellow everything works fine and isn't too slow or laggy
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] KappaTheCapper:
Well if it does happen they accepted the fact that you will not be held responsible for damaged/bricked devices
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] :
I have the same device gt p3100 so it should not be a problem for me. Also if the ROM is for espresso 3g then many here might be able to install it. Earlier version of sailfishos built by someone else was great in looks, that's why I wanted to try this out !!
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] :
Yeah its the responsibility of the owner and not the developer who is trying hard to keep this tab alive !
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] :
Any success ???
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
Yeah running sfos requires to be connected to pc and running surfaceflinger (for this tab there has to be a fix), so if thats fixed we can have something working for everyone, bluetooth still broken but the ui is smooth xD

Edit Fixed
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
Added download links for espresso3g!
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] :
Oh wow !!!! Love you bro. Well I won't test it now but I will surely in future😃😘
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] :
Hey @Mithil17, does Jolla account work properly ???
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
I didn't face any issues with Jolla account
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] :
Hey, thanks for listing all instructions. Not that I don't know them, but I just copy-pasted them in /e/ thread 😛🤣😅 (and did necessary edits of course)
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
Lmao
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Miraba:
Hi! Any chances espressowifi (mine's 7" p3113) gets a version?

Thanks a lot.
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] :
Maybe it'll come soon. Keep visiting the thread 👍😀✌️
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
Uploaded espressowifi version :D
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] HippoInWindow:
Greetings! Reporting the status of P5110 (espressowifi).

Everything works……. Except everything doesn’t.

The ROM seems to be fully stable, but there’s one issue I struggle: The orientation of the device never matches the touch controls. If I set it to portrait, the gesture would be in landscape, same the other way around. That’s what happens developing for two sizes in different default orientations I think
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
Oh, that's weird, so for the 7 inch version https://gitlab.com/blacksailer/P3113 is a fix for the touch, and i thought it would apply to the 10 inch versions as well, but looks like it doesnt work for 10 inch
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
Could you try commenting out a part in a file `sparse/var/lib/environment/compositor/droid-hal-device.conf` that is add # before

QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS="/dev/input/event0:rotate=270"
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] HippoInWindow:
The modification worked perfectly.

The only issues now are audio not working, and some parts of the UI are in the wrong orientation.

E.g. the setup screen, web browser content etc.
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] :
Wow it looks so cool. I wish I had my tab. Its in a cupboard drawer (and probably dead by now😞😭)
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
Yeah for web browser use WebCat as stated in 1st post, I dont have any issues with audio what happens in yours?
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] HippoInWindow:
Audio doesn’t work at all, ringtones, audio files, videos etc
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
can you provide some logs? (dmesg/logcat/journalctl) as it works for me on espresso3g
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] HippoInWindow:
I'm unable to find the directory specified
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
That is not a directory xD, those are 3 diff commands
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] HippoInWindow:
Okay I ran the above commands via SSH into the tablet, here’s the results:

dmesg spit out a lot of things, the command logcat is not recognised, and journalctl simply says no entries found
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
just send the dmesg in some pastebin, for logcat use /system/bin/logcat
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] HippoInWindow:
Here's dmesg: https://pastebin.com/WZUhaGHt

/system/bin/logcat works, but gets stuck in the middle and no progress for a few hours, so I ctrl+C it.

half logcat: https://pastebin.com/25e5WS9S

journalctl just says no entries found, I guess because the logcat isn't complete
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
07-24 05:14:37.220 1618 1618 E audio_hw_primary: Failed to open/sys/board/type

this is weird
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] HippoInWindow:
When I checked the file system I found out board folder doesn’t exist under sys folder
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
Yeah no clues about this, will try once i get free
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] MattiDeP:
it gives me ERROR:7 and can't install the sailfish rom
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] HippoInWindow:
Which exact device are you installing on? Most of the time Error 7 tells you you are installing an incompatible ROM (e.g. espressowifi on espresso3g) also does this occur during CyanogenMod installation or Sailfish OS?

The link to CyanogenMod 13 is only for espresso3g. You will need to use another package for espressowifi
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] MattiDeP:
i was installing the rom on my tab 2 10.1 3G, the error appears at sailfish os installation.
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
Whoops my bad, added the espressowifi link
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
What files did you download?
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] MattiDeP:
cyanogenmod 13 (the one from the post, 3G) and the sailfish os 3G file
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
Did you do the wipes?
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] MattiDeP:
Yes, I wiped everything before installing the cyanogenmod and after the cyanogenmod I wiped cache/dalvik and started installing sailfish, but didn't work
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
Uhh dont wipe after installing Cyanogenmod
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] fungie:
i am interested in using this as an office type device. since bluetooth is not working, is it possible to connect a usb keyboard?

and also is there a working printer implementation in sailfish?
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
USB keyboard should work, although i have not tested it myself since i dont own one.

Check out SeaPrint in the Jolla store for a printer implementation, it's source code is https://github.com/attah/harbour-seaprint
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] nemes480:
Error 7 when I install sailfishos zip. If I remember good, it's something with the device type detection (wifi/3g but Im not sure).

I have p3110 (espressowifi).

And a question under cyanogenmod 13 you mean LineageOS 13?
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
Possibility issue with twrp, use the lastest one by Android-Andi, and yes I do mean CyanogenMod 13
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] nemes480:
Im using the latest device specific twrp, form Andi

EDIT: I tried the latest common and devicespecific twrp too but neither of them works (same error 7). (Twrp3.3.0-2) What could be wrong?
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] :
The latest one for all espresso wifi devices is 3.4.0-0. Maybe that will work or try older ones below.

Download TWRP for espressowifi

Download TWRP Open Recovery for espressowifi

dl.twrp.me
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] nemes480:
Damn, thanks. I thought Andi handles twrp too.
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] nemes480:
So I'm now on 3.4 TWRP and I cannot install lineageos2017. I got:

Vertifying the update system image...

system partition has unexpected content after OTA update

Updater process ended with ERROR: 7

I wiped everything and tried to sideload but got the same result. Any ideas?
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] nemes480:
EDIT: 3rd recovery reboot, and maybe 7th time , the sideload succesfully ended both with lineage and sailfish. Now I have black screen, but I can turn on and off the backlight with power button.
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] :
It is because the 3.4 version was built in 2020 and so it can only install roms made in 2020 and 21. For older roms we need to use older recoveries.
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] nemes480:
Thank you for the quick replies. I succefully installed everything and booted the system. Touch looks rotated 90 degree at right
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
I think I sent a fix somewhere in this thread xD
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] nemes480:
@Mighty I can't find 'sparse folder in twrp, could you help me out? :) Sorry for the spamming today, I'm really excited about this project!
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
Why in twrp?? I think it's in a different location there, this is to basically connect it to computer and ssh into it
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] HippoInWindow:
The sailfish os filesystem is stored under /data/.stowaways
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] KardusLah:
black screen after install

samsung p3100
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] HippoInWindow:
How long did you wait? There’s no boot animation for me and it just booted up
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
p3100 means using the espresso3g files, did u use them?

I have a p3100 and it works fine
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] :
Sailfish os doesn't have boot animation. Even the first version for tab 2 didn't have it but it would be lovely to see if the sailfish logo would appear, won't it ???
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] KardusLah:
now I have successfully booted but there is a new problem. I can't install storeman

Fatal error: could not resolve: path-to-storeman-rpm

(Sorry for bad english)
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
path-to-storeman-rpm means the path where the storeman rpm is stored
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Smro0t:
Hi, so i have 7 inch ver. (espressowifi) but i also had a problem with the touch gestures (portrait is landscape and vice versa). how do i fix it? (sorry for repeating a question, im a newbie)
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
Check #2 in this thread, i added a fix
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Smro0t:
Thanks, Works perfectly now.
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] megamaced:
Amazing work keeping this old tablet alive. Will there be a SailfishOS 4.x port to this device?

I want to try this port on the 10.1 WiFi variant

Thanks
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
Thanks! Currently I dont think I'd be doing update to 4.x as there are quite some changes that come from 3.4 -> 4.0 also I'd first like to fix Android Oreo and use that as the base for sfos instead of marshmallow. Also it should work on the 10.1 inch wifi variant (espressowifi) but if you're curious about porting process https://sailfishos.org/develop/hadk/
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] MeowDude:
Did you ever sort out audio on the P5113 and other 10.1" models?

I'm considering buying a 10.1" galaxy tab just to mess with sailfish OS on it.
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
I do not remember even why it broke, maybe espressowifi needs its xml file for audio

Anyways I'd really like to use 7.1 or even 8.1 sources and make a new port from scratch, this is kinda ancient :P
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] santoshwins:
Hey @Mighty,

Just 'fished' out my old trusty esperesso3g 7" and I am excited about running Linux on it! You mentioned this is ancient and I agree. But do you think it is worth a shot? I want this to be a basic tablet for occasional browsing etc.

What are your thoughts?

Cheers!

S
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
Linux is very much a proof of concept, SailfishOS should get the job done for you though!

Mainline linux (postmarketOS) is great from a linux standpoint but browsing is slow iirc
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] santoshwins:
Thanks, @Mighty. Do you plan on developing this further? I'd much rather move away from Android altogether for espresso3g. Browsing is key, so maybe Mainline is not for me? Thanks.
[Galaxy Tab 2 (Unified 7" + 10.1") Android Developm] Mighty:
I dont see much to do here, userbase for it is much more lower than Android and due to time constraints I'd give priority to Android. The current build should work for you tho
[Samsung Galaxy S21 Ultra] ac42:
I have the Samsung 25w charger, and when using it it appears the phone will only either cable charge or superfast charge. It wont also fast charge. I want to maximize the battery life span of the phone, and cable charging is inconveniently slow, and I figured that fast charging would be a happy medium between that and maxing it out. I was under the impression that it's the phone that dictates the rate of charge it will accept from the brick, and the brick only determines the maximum deliverable current. If I understand correctly, we can use samsung's 45w charger, but the phone will obviously only allow 25w from it. I'm puzzled why when using the 25w charger the phone can't just accept 15w when set to only fast charge. Is this a bug?
[Samsung Galaxy S21 Ultra] fission6606:
Hi,

You might plug in your phone, Go to Parameters, Section Battery, Advanced Battery, and activate Super charge and superfast charge in order using fast and supercharge with your 45W charger !
[Samsung Galaxy S21 Ultra] ac42:
Yes, I've done that. The 25w charger will only super fast charge, but won't just fast charge. I would have thought it could either one, whichever I have it set to do.
[Samsung Galaxy S21 Ultra] fission6606:
if you want fast charge ..... deactivate superfast charge should be the solution ! Isn't it ?
[Samsung Galaxy S21 Ultra] blackhawk:
Probably a firmware/software glitch.

Fast charging will not enable if battery temp is too low.

To avoid Li plating the battery temp should be a minimum of 72°F or higher, the preferred minimum is 80°F.

Using the 45 watt brick may shorten battery life.

Fast charging with the 25 watt brick appears to do little damage.

Li's prefer brief, frequent midrange charges ie 40-65%. Avoid discharging below 30% and charging beyond 90% although 80% is a better top limit.
[Samsung Galaxy S21 Ultra] ac42:
No, if you only activate fast charge (with superfast deactivated) and use the 25w brick, the notification in the shade says cable charging, and that takes like 2hrs to charge the phone.
[Samsung Galaxy S21 Ultra] blackhawk:
That doesn't sound like fast charging is active. It should gain about 2%@minute through most of its range except the top end where it goes to about 1%@minute.

When this doesn't work correctly it's a true pain to troubleshoot. My 10+ started dropping out of fast charging prematurely. A new 25 watt brick/cable and trying a lot of other remedies still hasn't fully restored it.
[Samsung Galaxy S21 Ultra] ac42:
I'm curious if anyone here has a 25w brick that could confirm if this behavior is present globally, or if this is something just on my device? Only activate fast charging in the battery settings, plug the phone in with the 25w charger, and look in the notification shade and see what the charge rate is tagged as. I'd be grateful if someone would confirm this.
[Samsung Galaxy S21 Ultra] peterg21:
I have noted that you practise the same charging procedures as I have done for several years (and you obviously have done as well). With my Note9 and S8 + I used to not let it drop below 40% if I can avoid it and also not go above 80%. All this is fine and most of this we all probably learned from Battery University and Isadore Buchmann. That all said, and I am really not sure if I am keeping this phone - Decision today or tomorrow - my question comes to the matter of calibration. When I received this phone some 14 days ago I charged it to 100% but thereafter did not run it down to zero but kept it above 40% the whole time. The question I put to you (and others can learn from your response) is there a need to "calibrate" the device initially (ie run down to say 10% for example once a month) as was suggested by Buchmann probably a few years ago?
[Samsung Galaxy S21 Ultra] peterg21:
You and I discussed this earlier. Do you think it is the port that has become damaged? Part of the reason for my getting the wireless charger is my Note 9 is very erratic when it comes to fast charging. Cleaning out the port with a toothbrush/compressed air. rebooting...wiping cache partition, new cable etc never truly fixed it for me. I do feel that when first plugging in the S21 ultra (before going wireless) the connection seemed a lot firmer.
[Samsung Galaxy S21 Ultra] dscline:
It does appear to be related to the Samsung 25w brick. I have the one that came with my S20U. It will "Super fast charge" my S21U no problem. If I turn off super fast charging in the phone, it only says "charging" when plugged in, and with my phone @ 65%, it said it would take well over an hour to charge (forgot the exact time). Then I took my phone w/o changing any settings to a generic 18w QC3 brick, and it said "fast charging", and said it would take 44 mins to complete.
[Samsung Galaxy S21 Ultra] a.gordon1989:
Ive seen this same type of issue as well with 2 different chargers. One charger (45w pd) will fast charge with super turned on but not fast, notification only says fast charge. The second (39w qc3) will fast charge with regular fast charging turned on, but turning on super does nothing. Charge times are the same with both chargers on regular charging and fast, with 0 differemce between fast charging and super.
[Samsung Galaxy S21 Ultra] blackhawk:
I'm as clueless as you at this point unfortunately.

My port is good, cable/charger, tried hard reset, cleared system/akp caches, did the recall thing and so on.

I'm wondering if it's a battery fault. Do older batteries go into fast charging the same as newer ones? It's almost as if it's throttling the fast charging, sometimes it's full bore then it drops out to 1%@45 seconds then to 1%@minute.

Or is it a calibration ie it thinks it's at 90% when it's only at 70%?

The only I haven't done is a factory reset, lol.

All this started one night when it was slow charged to 100%. WTF?

TFF🤣 the curse of technological Beast!🤣

Guess I'll try recall again.
[Samsung Galaxy S21 Ultra] ac42:
Right on. Sounds like it's not just my phone. That's a relief. It's puzzling why the phone can't also fast charge with that brick. Perhaps it's simply a bug that Samsung either never noticed, or it isn't a priority to them. It would be nice if we could take advantage of the different settings without having to have two different bricks sitting around.
[Samsung Galaxy S21 Ultra] mysterioustko:
I think I figured it out. The fast charging setting is for the old classic fast charger. If you connect your phone to that one, you'll see it says it's fast charging. If you don't have fast charging turned on, it'll prompt you to turn it on to use that charger at it's maximum capability. If you use one of the newer Samsung C to C bricks, it's going to do the super fast charging.
[Samsung Galaxy S21 Ultra] shaunydub:
I am currently using this Baseus charging plug and get full range of charging options - fast / super fast.

Thought I would try some I have hanging around before buying a Samsung one.

Baseus USB C Charger 120 W with GaN Tech Power Delivery USB-C Power Supply Compatible with MacBook Pro/Air, iPad Pro, iPhone 12 Pro Max/11 Pro Max/XS Max, USB C Laptops, Surface Pro, Galaxy, Huawei: Amazon.de: Computer & Accessories

Baseus USB C Charger 120 W with GaN Tech Power Delivery USB-C Power Supply Compatible with MacBook Pro/Air, iPad Pro, iPhone 12 Pro Max/11 Pro Max/XS Max, USB C Laptops, Surface Pro, Galaxy, Huawei: Amazon.de: Computer & Accessories

www.amazon.de
[Samsung Galaxy S21 Ultra] thegr8anand:
XDA just covered this in their article:

Fast Charging Explained: The slowest to the fastest Fast Charging technologies

Curious about fast charging? Here's everything you need to know about fast wired charging standards and how to pick the best charger!

www.xda-developers.com

Unless a charger has USB-PD PPS they will only FAST Charge @ 18w with fast charge on (super fast on/off wont matter as it will be off). If you are getting super fast charging then you are getting the expected 25w which is totally fine and not bad for battery. You will get super fast with the samsung 25w adapter and maybe the previous series 45w adapter.
[Samsung Galaxy S21 Ultra] blackhawk:
No huge charging improvement. It most likely will degrade the battery faster.

I use only the Samsung 25w bricks because they are known good and relatively cheap.

Just picked up a 25w brick and cable for $20.

The amount of trouble a defective charging hardware can cause means I won't consider using 3rd party chargers/cables for fast charging.

Fast charging is a nightmare to troubleshoot as I'm learning now... will see if a couple full 100-0% charge cycles get it or not.

It's time consuming and irritating.
[Samsung Galaxy S21 Ultra] ac42:
Thanks for posting the link to that article. It clears some things up. Charging standards have become rather confusing with all the proprietary standards. This makes me feel more comfortable using the 25w super fast setting on the s21 ultra. 👍
[Samsung Galaxy S21 Ultra] M3dad01:
does the 45W Support S21 Ultra ? I'm Currently using Belkin 20W charging brick with usb c cable that came with the device and it gives me fast charging
[Samsung Galaxy S21 Ultra] RomBox:
the 45w charger for sure can charge s21u, but will be limited to 25W speed at most. and even if the phone show "super faster charging", it may not at 25W even at the 0-50% range: when the phone temperature over 36 degree, it will switch to 9W speed. my location the climate is very hot, thus I have to put the phone above a small fan to make it can charging at 25W speed longer.

you can install "3C battery manager" to check the charging speed. for s21u around 100%/h means 25W charging.
[Samsung Galaxy S21 Ultra] Quazza:
Faster charger that came with my Huewei mate 20 pro doesn't work ...

Sigh
[Samsung Galaxy S21 Ultra] blackhawk:
Remember fast charging will not engage if the battery is cold, roughly 60-50°F or below.

Best charging starting temp is 85-90°F. It will disengage somewhere above 100°F.

Cold charging Li's can cause Li plating and should be avoided.
[Samsung Galaxy S21 Ultra] Quazza:
Here in Australia that's never really an issue haha
[Samsung Galaxy S21 Ultra] amirage:
Hi Comrades, I have a question about charging the phone using my iPad 12W charger. The article states a lot of technical terms regarding power delivery which I'm not sure if the iPad has. Has anyone tried charging the phone using an iPad 12W charger? I do have the 25W Samsung charger but I'm not very keen on fast charging my phone on a daily basis due to the ill-effects of fast charging. Look forward to your comments.
[Samsung Galaxy S21 Ultra] RomBox:
you can turn off fast charging and superfast charging in the phone's settings.