claude0001

What f(x)tec euphemistically refer to as a "sleep state" means nothing else than that the battery erroneously got depleted to literally 0.0 V, so that there is no energy whatsoever left in it. The "battery protection" system should normally prevent this from happening. Not only is so deep discharging bad for a Li-battery's life expectancy, it also turns out that Android actually always needs enough residual charge left to boot its kernel before re-charging from USB can start. So, yes, once bitten by the battery depletion bug, there is no other way than to either 1) send the phone back

Happened to me once with LOS 20. The battery literally ran down to 0.00 V and I had to use a lab PSU to recharge it -- definitely not something you want to do every week. @Sean McCreary confirmed that it is a problem with the proprietary BMC code, so the fix needs to come to Stock before community OSs can pick it up. I do not believe it is fixed in 2.1.5 as that has been around since September last year, and f(x)tec reportedly were working on the issue as recently as in March. Maybe in that 2.1.6-beta?

According to their website, you can use "apt, dnf, pacman and yay" interchangeably. apt will use the Ubuntu repos, pacman those from Arch, and dnf will get its packages from Fedora. P.S.: As a hardcore Debian user, who even hesitates to mix "stable" and "testing" packages, I am horrified by the idea to blend together several distributions that are completely unrelated. But that's a different question ... 😉

I do not know BlendOS, but it appears it can use the Ubuntu package repositories. In that case a simple sudo apt install adb fastboot should provide you with everything you need to follow e.g. the flashing instructions from the LineageOS wiki.

The Pro1-X can can do off-mode-charging. I have it enabled and working on one of the Lineage beta releases. That being said -- as @Sean McCreary clarified in another thread -- Android devices are not truly "off" during "off-mode-charging". The Linux kernel and battery management software need to be up and running, just like if the device was switched "on". The only difference is that the Android GUI is not loaded. Now the problem with the Pro1-X is that it's got a bug which allows the battery to discharge completely. If that happens, the device is bricked, irrespective of off-mode-ch

@jakfish, @Hook, @brunoais: I respect (and sometimes admire) your point of view. However, please let's agree on that the Pro1-X was not marketed as an HPPC, but as a phone that could (maybe) double as an HPPC. Let's also not forget that it was meant to be delivered with LineageOS (OK, we finally have that now thanks to community support) and UbuntuTouch (nowhere close). Let's further not forget that it was supposed to come with HDMI-Out to enhance that HPPC aspect (especially with UBTouch). I do not see how my Pro1-X is fulfilling any of those design goals. That's why I, sadly, shelved it

Another update of LineageOS 16.0 (for SD835-Pro1 only) is available at https://findus.zwergenschaenke.net/~puma/linux.html#lineagepro1. The ROM dated 20230516 gives you backported security patches up to the 5 May 2023 ASB. No other changes since last month. As usual you can refer to the tarball of local mods to learn all about differences with respect to the official lineage-16.0 tree. Have fun!

It's really hard to interpret those lines differently than that further development of stock Android (on which all alternative OS's rely on in the end!) is essentially off the table. Bad news for anyone who hoped for updated driver modules or firmwares that would fix network reliability issues. This is the second month in a row with no news whatsoever on in-house software development or bug-fixing (after we've been in "the final sprint" for an OTA since November or so). Do not get me wrong: Yes, it's great that we have LOS 20.0. But that's a community effort. In my understanding, F(x)tec

... well that's the point: I want to stay on my custom LOS 16.0 ROM, but have backported quite a few fixes from later LOS releases. That's why I was asking about the specific patch to look at ... 🙂

I'm about to update my LOS builds with the May 2023 ASB fixes. So I repeat my question: Does anyone know what patch in LOS 17 or 18 apparently fixed low-brightness screen colours on the Pro1? Would love to include that one ...

As you have guessed, I find this hard to believe, indeed. @tdm once argued that the green tint problem was likely related to lack of stringent screen calibration, something supposed to be near-unaffordable for small-series manufacturers, so that it is essentially a matter of luck, whether you get a green-tint screen or now ... Are you able to point out the LineageOS patch that you think did this magic for you? If it exists, I would love to backport that fix to my LOS 16.0. However, I'm not able to find anything that seems related, neither in the pro1-specific LOS 17.1, nor the LOS 18

In LOS 16.0, there is a setting "System > Gestures > Jump to Camera". Enabling that causes the camera app to launch when the power button is pressed twice. Not sure that feature exists in later LOS versions, but if yes, you might want to make sure it is disabled. Otherwise accidential double-presses of the power button might indeed cause the behaviour you observe.

The thread you are looking for is here: https://community.fxtec.com/topic/3204-display-units-with-large-tap-insensitive-margin/page/9/ However, I do not think we had a case of Pro1-X with this problem yet. For the Pro1, the usual fix was to flash back to the initial stock (Android 9) OS. Not sure it works similarly for the Pro1-X ...

I'm a big fan of LineageOS. But for completeness, let's mention that there seem to be some apps that refuse to install and/or run on LineageOS, because they identify the system as "unsafe" (unlocked bootloader and all that ...). Yes, it is nonsensical to consider stock Android 9 -- with by now hundreds of unpatched security holes -- as "safe", but, apparently, that's what they do ...

The FP3 also has an LCD. But especially at low brightness it looks way better than my Pro1's AMOLED. Also: No f**ing rounded edges! 😄 It's not all in spec sheets.

Dear @Slion, I think I've got an idea how you are feeling. While I haven't retired my Pro1 yet, I also use the HW keyboard less and less. Partly, this is because some keys are becoming more and more unreliable, which makes typing a frustrating experience. Mostly, however, my use cases for the keyboard are much fewer than I had initially expected. I came to the Pro1 from an N900, which had an OS and an app ecosystem that was designed around landscape use of the phone. This is simply not true with Android. While almost all apps support landscape in some way, few make intelligent use of

If the issues are software-related at all (which has not been proven), it is reasonable to assume that the bugs are in the drivers and/or their firmwares. Those bits are closed-source and cannot be fixed by LineageOS. They just re-use them 1:1 from stock.

No, we don't. What we do know is that F(x)tec have been struggling to fulfill the pending orders and IGG perks for the better part of a year, and the situation does not seem to clear up. The phone might eventually become reavailable for purchase from their web store, but I wouldn't hold my breath. That being said, quite a few phones have been delivered (though mostly not by F(x)tec), and unboxed-but-unused Pro1-Xs pop up on ebay all the time. So it shouldn't be that hard to get one if you really want it. Then again, you might ask yourself why the Pro1-X is easily available on the sec

As @Sean McCreary clarified in the LOS 20 thread, off-mode-charging cannot actually protect you from the battery-depletion-bug. The Pro1X's (and likely any other Android devices's) charging is controlled by the OS in all cases. Seemingly, this means that some minimal amount of battery-charge is always required to boot the OS to the level where power-supply can be actively handed-over to a USB-connected PSU - irrespective of whether only the "charging screen" is loaded, or the full Android/Lineage GUI. Do not ask me why things are designed this insane way. It just seems to be the reality

@SchattengestaIt Those are amazing hardware hacks. Many thanks for sharing! We're slowly getting to where the maemo.org forum left off ... 😉

I had been suspecting this was the case for some time now. Thanks for clarifying. This means that off-mode-charging cannot actually protect us from the battery depletion bug. If the battery is flat, it's game over, irrespective of the off-mode-charge setting. Thanks, it is clear to me that LineageOS cannot fix those bits. Does anyone know whether F(x)tec actually have the sources? I.e. can they fix these things in house or do they rely on some external software company for maintaining the stock OS and its drivers?

That variable has nothing to do with individual signal levels. It works in conjunction with the INTERMEDIATE_POS=1 setting, and causes also the very early iterations of position estimates to be reported to client apps as a "fix". The unit of ACCURACY_THRESH is meters. Setting it to 3000 means that early position estimates are reported, even if they are still uncertain by 3 km. However, to my knowledge, the variable does not actually influence how the iteration towards the final solution for the position progresses. To me, the fact that @Name_not_avail saw their phone getting the fix

So ... I recharged my Pro1-X battery using a laboratory power supply after it had depleted completely, probably due to the "battery protection bug" mentioned by f(x)tec in their updates. It turned out that the most difficult part in this is getting to the battery. The Pro1-X is not nearly as "serviceable" as I expected. Separating the different parts of the body is not as easy as the instructional videos suggest. Also, the battery itself is glued into the phone, which makes its removal a scaring endeavour. Note that removing the battery from the phone is not strictly necessary for re-char

So ... in case you want to relive the good old days with the Pro1 (SD835 only!), LineageOS 16.0 just got another update. At https://findus.zwergenschaenke.net/~puma/linux.html#lineagepro1 fetch the ROM dated 202304024. It gives you backported ASB patches up to 5 April 2023. There are no other changes compared to last month's release. Refer to my tarball of localmods for the full list of code changes with respect to upstream LineageOS 16.0. Have a lot of fun.

OK, fixed it. Prawn-X is back alive! 🥳 Turned out the battery was completely flat. After disassembling, I measured 0.00 V between the pins! I do not know how that happened, maybe I did accidentally leave the device on when putting it away. Still, I'm pretty sure the battery should never discharge to 0 V in any design scenario, as the device should automatically switch itself off before. I guess this is related to the "battery protection bug" f(x)tec keep mentioning in their updates ... Anyway, I was able to charge the battery to ~50% (3.9 V) using a laboratory power supply. After tha