yashsingh1/xdaforums huggingface dataset:
[General Questions and Answers] vy4ch3sl4w:
Hi, I want to start a thread about 64bit MTK chipset porting, rom building, flashing etc.

With what I want to start is...

I have a Cubot Dinosaur device, that I have rooted with TWRP recovery up and running successfully. What I wonder about and been looking all over internet is a way to port or sp flash a rom to Cubot Dinosaur.

I tried all tutorials on porting, looking through different guides for MT6735 64BIT PORTING, but none successful so far & every single one is a littke different (different files replaced from stock to port etc.) - I always get "twrp updater process error: 7 or 11". I can't seem to find the fix for the latter on the net. I found the "assert"-line erase fix for error 7, but I have no "assert" lines in any updater script file of my custom made roms.

I tried (foolishly, I know) flashing the stock rom 5.1 from Cubot x15 (same chipset MT6735A) via SP Flash Tool & of course ended hard-bricking my Cubot Dinosaur, cause of the wrong preloader, which I managed to unbrick later by the way.

However, if there's such problem or difficulty with porting or building custom roms for 64bit Mediatek chipsets (such as MT6735A etc.), which obviously is as far as I've managed to comprehend (noticing lack of roms for 64bit Mediatek chipsets on internet) and I'm open for help if anyone knows how to do it correctly, I wonder if...

... I replace the (for example) X15 preloader with Dinosaurs, unpack X15 system.img & fix camera files (cause Dinosaur has Omnivision OV8856 and X15 has another one, CMOS I think not Omnivision), repack the system.img, replace it, modify scatter file so that the Dinosaur preloader gets installed, not X15's and flash via SP Flash Tool. Could that work?

Or could someone give me a guide or tutorial for actually working process of compiling (porting) rom (like CM 12.1, Dirty Unicorns, MIUI etc.) for MT6735A 64bit chipset?

I want to have Lollipop rom or Kitkat, cause Marshmallow*is driving me crazy with Doze optimizations etc. I practically and theoretically hate it if I'm honest & I tried Nougat on another android device, same **** so... But I noticed that only Lollipop is the "oldest" Android OS for 64bit MTK chipsets.*Is that right?

Thanks for any help, guys.:)
[Moto Z Questions & Answers] perlsyntax:
Has anyone got a Moto Z gsm from amazon and i want to know do you get support from moto?
[Moto Z Questions & Answers] stefanorickeets:
Yes.
[Moto Z Questions & Answers] perlsyntax:
Where is the moto z image on moto web site?
[Moto Z Questions & Answers] FFF9527:
well
[Moto Z Questions & Answers] perlsyntax:
Well?
[Moto Z Questions & Answers] destes37:
Of course Motorola will support the phone, not entirely sure why you might think that they would not. The link with the image you look for is https://www.motorola.com/us/products/moto-z-family
[Galaxy Tab 2 Q&A, Help & Troubleshooting] Tordenfod:
Started asking here : https://xdaforums.com/galaxy-tab-2/...enmod-13-cm13-0-t3303798/page263#post70894853

Story : cm 13 running but can't download from play store. Neiter can I get acces to card in tablet from pc. ...
[Galaxy Tab 2 Q&A, Help & Troubleshooting] smart-t78:
so, first step for you. download the latest common-twrp from android-andi http://andi34.github.io/recoveries_tab2.html

you need version 3.0.3-0. choose the zip file.
[Galaxy Tab 2 Q&A, Help & Troubleshooting] Tordenfod:
yep - its in tha house
[Galaxy Tab 2 Q&A, Help & Troubleshooting] smart-t78:
nice...next step.

turn off the tab.

then boot into your twrp recovery by pushing and holding the power button + volume down button. if the twrp screen appears you can stop pushing:)

when you see the twrp menu push install and navigate to your downloaded common-twrp zip file

install it
[Galaxy Tab 2 Q&A, Help & Troubleshooting] Tordenfod:
have to lace file on Card on pc. cant move it on tablet...

but : signature verification failed :(
[Galaxy Tab 2 Q&A, Help & Troubleshooting] smart-t78:
go to twrp settings and uncheck signature verification
[Galaxy Tab 2 Q&A, Help & Troubleshooting] Tordenfod:
have to load file to SD Card on pc. cant move it on tablet...

but : signature verification failed :(
[Galaxy Tab 2 Q&A, Help & Troubleshooting] Tordenfod:
Where do i find Twrp Settings....? Normalt twrp opens with a screen with "SIM card " buttons... but I can't even get twrp to open from the sd card, it's where I get the signature error.... So I need help for a further step back.... like I wrote I can't even get Odin to talk to the tablet... all help welcome, it's been awesome so far, but I'm still stuck...
[Galaxy Tab 2 Q&A, Help & Troubleshooting] smart-t78:
http://www.androidtipsandhacks.com/root/twrp-the-complete-guide-to-using-recovery-on-android/

or

http://andi34.github.io/faq/faq_twrp.html

or

https://android.gadgethacks.com/how...only-custom-recovery-youll-ever-need-0156006/
[Galaxy Tab 2 Q&A, Help & Troubleshooting] Tordenfod:
Might be.. but I'm not able to both into twrp... therefor I can't go to settings...etc etc... so any other ideas?? :good:
[Galaxy Tab 2 Q&A, Help & Troubleshooting] smart-t78:
you can boot into your recovery. turn off the tab. then push and hold power button + volume down button at the same. after maybe 10 seconds you will see the boot screen of your recovery.

go to recovery settings and disable signature verification.

then flash the latest twrp recovery with your current recovery.
[Galaxy Tab 2 Q&A, Help & Troubleshooting] Tordenfod:
Holding volume down and power -> boot menu -> options are " reboot system now , apply Update from external storage, wipedate/ factory reset, wipe cache partition, apply Update from cache" and that's it :rolleyes:....
[Galaxy Tab 2 Q&A, Help & Troubleshooting] smart-t78:
strange....looks like that you are on stock samsung recovery.

---------- Post added at 08:07 PM ---------- Previous post was at 08:00 PM ----------

try to download "twrp manager" from playstore or the .apk from the internet https://www.apk4fun.com/apk/916/

---------- Post added at 08:20 PM ---------- Previous post was at 08:07 PM ----------

are you rooted??
[Galaxy Tab 2 Q&A, Help & Troubleshooting] Tordenfod:
Should be rooted but I can't give twrp Manegen root permission so I guess not ....
[Galaxy Tab 2 Q&A, Help & Troubleshooting] smart-t78:
go to settings---about tablet and tap 7 times on the build number. this will enable the developer options in settings.

open the developer options and enable root access. set it to apps & adb.

after that open the twrp manager and try to install the latest official twrp (2.8.5.0) for your device.
[Galaxy Tab 2 Q&A, Help & Troubleshooting] Tordenfod:
I guess I should be able to install from inside twrp Manager?

App installed and fund the file 2.8.5.0 but no installation option
[Galaxy Tab 2 Q&A, Help & Troubleshooting] smart-t78:
install a root checker from playstore and check if you are rooted

---------- Post added at 05:44 PM ---------- Previous post was at 05:19 PM ----------

hmmm...open twrp manager. tap on the menu button at the bottom right. then tap on "install twrp". on next screen choose your device. after that tap on "install recovery".
[Galaxy Tab 2 Q&A, Help & Troubleshooting] Tordenfod:
Checking !!

And maybee i should have done this before ! This is the procedure i went by- https://xdaforums.com/showthread.php?t=1722304

followed the CWM path....and as i remember it followed it pretty tight with no issues ...
[Galaxy Tab 2 Q&A, Help & Troubleshooting] smart-t78:
on which recovery you are on at this moment?? maybe make a screenshot and post it here. you need twrp if you want to install the latest roms. cwm and phillz touch recovery are very outdated and causing issues with the latest roms.
[Galaxy Tab 2 Q&A, Help & Troubleshooting] Tordenfod:
Think the problem is that there is no recovery.... but I will make a screen dump as soon as I reach home... is there a bulletin proof guide for rooting and running a 6.0 rom that you know of ? I'm having multiple x5 devices Samsung tab2 7" 3110 bought in a box for like 15-20 $ :D...I might just put the old one at side and start over with a fresh.. the car project is fat more exciting to dig in to than solving funny errors...they can wait Til a day at the airport :cool:
[Galaxy Tab 2 Q&A, Help & Troubleshooting] smart-t78:
maybe it helps https://xdaforums.com/galaxy-tab-2/general/how-to-install-cm13-galaxy-tab-2-10-1-t3540461
[Moto Z Play Accessories] Sky's Divide:
I've been using both the incipio offgrid, and tumi powerpack battery mods (both are wireless charging variants) and have noticed just awful battery life. from 100% it charges my phone up maybe 15-20 percent, and thats with the screen off, just streaming music. If I'm using the phone (just surfing the web or instagram) the battery dies in around 30-45 minutes, is this normal? I expected alot more out of these. I can just stare at the notification bar and watch as the battery drops, my software is up to date, and I was just wondering if this is normal? Is everyone else getting this awful performance? I expected way more for like 70-80 bucks each...
[Moto Z Play Accessories] xxBrun0xx:
This is not normal. While I don't have either of these, based on the reading I've done and reports I've seen from people who do, the Incipio off grid should be able to charge your phone up 50-75% when attached. Not sure if you have some crazy wakelock that's keeping your CPU maxed out all the time or what, but dying in 30-40 minutes makes no sense.
[Moto Z Play Accessories] Sky's Divide:
When I got it to die In 30-40 min I was on a phone call and surfing instagram. Took the tumi out yesterday with 80% battery in it and had my phones screen off streaming music over Bluetooth. The phone charged up about 25% before the battery pack died. Any ideas on how I could improve the battery life? My moto mods manager is up to date and I don't get any prompts to update anything whenever I snap on the mods
[Moto Z Play Accessories] Aerandir14:
I was surprised when I found this post, so I checked how many percent of battery do I get with a my incipio battery mod. I plugged the mod, my phone's battery was at 15% and the battery mod was at 100%.

Now the Incipio battery mod is empty and my phone's battery is at 50%. So it charged my phone by 35%.

Pretty disappointing for a 2220 mAh battery that costs almost 100€ ...
[Moto Z Play Accessories] DadOudidOuda:
To me the best use of the mod is to snap it on when the Moto Z Play is fully charged and to chose the option to keep the phone battery at 80%. With normal use, i've seen the mod keep the phone at 80% for up to a day. To me the mod is not meant to charge the phone but more to keep it from discharging.
[Moto Z Play Accessories] tag68:
To me the idea of the battery mod makes no sense.

There is an Aukey 16000 mAh power pack with QuickCharge 3.0 available which boosts the battery in nearly no time. I paid less than 20 Euro.

Who needs such a battery mod with a Moto Z Play which lasts all day under heavy usage?

Who needs such a battery mod when power packs are big, cheap and fast?

Who even needs the power pack if you have a wall outlet with a QuickCharge 3.0 charger boosting the battery percentage in no time? I needed that power pack when the previous phone (Moto X Play) had some hardware defect making it lose power.

Edit: These questions are meant honestly. Are you living in the desert for several days and can't afford to carry a bag?
[Moto Z Play Accessories] xxBrun0xx:
The battery mods are not particularly useful for the Z Play because if you charge every night, you have basically unlimited battery life. Battery packs are extremely useful for the regular Z, though, which has extremely poor battery life on its own. They're basically mandatory for the Z.
[Moto Z Play Accessories] fortunz:
I'm shocked that battery mods can only charge your internal battery and can't be used directly (discharging the mod battery instead of the internal battery), the same way Thinkpads that have more than one battery can do. That makes the $80 (vs maybe $10 for a 2000 mah ravpower) cost all the more eyebrow-raising.

I'd love to use them as a way of preserving the sealed in internal battery's longevity, making the internal battery the backup battery and wearing out the easily replaceable, easily swappable mods instead.
[Moto Z Play Accessories] tag68:
What do you think how a battery should be treated to prolong its lifetime?

This is a serious question. I'm not sure if charging cycles do matter these days. The point which makes batteries getting weak is the age. An additional battery will not help reduce the age.

Of course you should be careful not to be in extreme cold or heat. If the battery is below 30 percent, you should consider to charge it. You should not charge it again if it's over 80 percent. But trying not to use it seems not to really be helpful for the battery to have a longer life, although battery lifetime usually is given in battery cycles. At least this is my experience. If it does not get hot when used or charged, all batteries nowadays start getting weaker a bit after about 2 years, it gets really recognizable after 4 years, and when they are 6-8 years old, they get so low that they may not fulfill there purpose anymore. Cycles? Never recognized any influence for the lifetime. But one hot day with a usage above average where the battery gets hot may really cause a recognizable decrease in capacity.

If you have some source comparing battery lifetime for different use cases (storage, low usage, middle usage, frequent usage, under different conditions of temperature, fast charge and slow charge) I'd be really interested.
[Moto Z Play Accessories] fortunz:
Same sources as you, personal experience and basic knowledge (battery life being measured in cycles). I'm not even completely worried about average aging, but out of a batch of millions of batteries, plenty will start to experience rapid discharge early, even without abnormal heat, not to the point of being completely dead, but certainly no longer tolerable. Today's phone batteries might actually tolerate heat better than in the past, having been built for quick charging, which is the hottest a sd625 seems to get.

I've read manuals and battery university and a few tech blog articles all of which have differing advice, just like you and me, but I have yet to find a source I find credible (based on diverse large scale testing not limited anecdotal evidence or in the case of manuals, insanely outdated nicad-era stuff). And, sincerely no offense intended, I'm unlikely to decide cycles don't matter and weight your anecdotal evidence over mine anymore than you'd weight mine over yours. But if you ever find a good source with those comparisons, I'd be pleased to check it out too.
[Moto Z Play Accessories] RedRamage:
Because I'm a very heavy user of my phone and don't want to worry about power even if I can't get to a outlet during the day.

Because the bat mod is easy to slap on and keep on all the time (when I'm not using a different mod). Then I never have to worry about taking the pack with me or not or carrying the extra cable with me or not.

Because I don't want to have to worry about having the charger with me or finding a spot to charge.

I fully admit that I tend to be more paranoid about running out of power than I need to be, but I like to be secure knowing that I should have more than enough battery life, even if I can't charge overnight. I like to know that I can grab my phone at any point of the day and walk out the door with it without having to worry about taking a charger with me.
[Moto Z Play Accessories] thefunkaygibbon:
I quite like just not having to charge for three days. I have the battery mod which I use on the efficiency mode, and I got over a full day out of it. At the end of day three I had nearly 30% battery left. Probably enough for most of one more day.

The other thing for me is using wireless charging. I like just slapping my phone on a stand overnight when I do charge it. It charges slowly, yes, but it doesn't matter if I am charging overnight. I still have access to the quick charger if I need to get a full battery quick!
[Moto Z Play Accessories] shanilen:
I use mine on my motorcycle where I'm riding for 10 hours a day. I'm at about 50% in 4 hours and dead by 7 or 8, so I'm hoping with the additional battery MOD that I can get at least 12 hours charge. I'm really bad about remembering to plug my phone in when I stop for a break!
[Moto Z Play Accessories] Jose-MXL:
[MENTION=6192363]tag68[/MENTION] : dude I think you totally missed to read what [MENTION=1718085]fortunz[/MENTION] was saying, he was only pointing that he would like the Mods to be used as a primary source battery instead of being a "ultra-portable power bank".

Given that there is also a fraction of the power being lost in the form of heat, during charge/transfer, it is even more silly from Motorola not to have the battery used directly. I can say by the 25-35% charge from the Mods estimated from other users, that the efficiency is somewhere around 50%, HORRIBLE to say the least.

And yeah I was reading through both of your posts and good information was provided, although unnecessary friction used (not naming anyone).

I actually have kind of the same idea from [MENTION=1718085]fortunz[/MENTION] to prolong the battery life of my Z-play even with the mod just being a power bank.

Saying that the mods (~2220mah) charge your phone anywhere between 25-35%, I can actually take the top 25-35% out of my internal battery use and move it to the Mod.

So I can charge my phone up to 70% before going to bed, and then when my phone reaches 30% during the use next day, I'll just slap the mod.

I can allow myself a lot of variation to this, I will not be religious about it, the topic is to avoid hitting 100% charge, and instead, moving the wear of that 30% usage to the Mod.

According, to many articles, citing just one below, considering the depth of discharges and voltage levels, you guys might do the equation if you like, but according to the charts and theory:

charging my phone twice a day trying not to exceed 70%, will give me WAY more longevity run than charging up to 100% every day.

First charge will be from around 15% which is my normal deadline to around 70% with a wall charger, before going to bed.

Second charge will be from the mod from around 30% to around 60% (hopefully), which will give me portability while charging.

Total screen on time during the day, should be around 10% less, but well worth and I can definitely take the hit if getting more battery longevity as a trade.

Source:

http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries

Huh, it even makes sense when explaining to other people...
[Moto Z Play Accessories] fortunz:
In re: friction, I took no offense from the exchange. Hopefully I didn't cause any either.

Good luck with your efforts. I have considered using this app to to stop charging early: https://xdaforums.com/android/apps-games/root-battery-charge-limit-t3557002 Haven't started using it yet.
[Moto Z Play Accessories] Jose-MXL:
Sadly that application requires root... and I don't want to unlock the bootloader and then having to worry about SafetyNet...
[Moto Z Play Accessories] tag68:
For me SafetyNet is green using Magisk 12.0 as root solution, but that may change of course. But it would help for the battery.

Short rant about this topic: It is strange that the owner of a device can be forbidden to restrict the charging. You bought it, you should be able to do these things with it. Introducing SafetyNet is a bad idea by Google. Security should be made by algorithms, not by hardware. Using public key anyone may modify anything, and you can still assure the content to be trustworthy. There no need to prove the Android not to be modified, it is just a bad idea, unnecessary restricting the user. Owner.
[Moto Z Play Accessories] Jose-MXL:
Well said :)

Thanks for the tip! I'll have it mind!

At the moment I don't feel like unlocking the bootloader because I'm planning to use the moto Mods and these can't be used with custom ROMs yet, and I have no use for root other than changing the work mode on Greenify but it already works well enough in No-Root mode, so for me there is no true benefit.
[Moto Z Play Accessories] larsdennert:
A good resource for lithium batteries are rc helicopter forums. Helis use speed controllers of many tens of amps, drain the batteries in minutes versus days to low levels and charge them at high speed. What reduces their life is heat, overcharging the voltage or over discharging the voltage. They do not age if left in a partial charge. You can let them sit for years unused and they will lose very little capacity. If you only run them at 70%cycle, they last about 3000 cycles.
[Moto Z Play Accessories] strebalicious:
Well, that was weird.

Phone at 9%, mophie mod at 100%. Put it on, barely used the phone (even took a nap). About an hour later, the mophie mod is at 50%, but the phone actually went down to 8%. Took off the mod and the phone went immediately to 4%. Ouch.

Mod normally works fine. It'll keep the phone at 80% for most of the day just fine. Not sure what was going on.
[Moto Z Play Accessories] tag68:
Just an annotation:

Using a battery mod lets your internal battery stay mostly unused. It will be ready to use, probably always being charged at 90-100%. But the battery has its point where the lifetime is bigger at 30-70%. Normal usage, if you usually don't let the battery go below 10%, will result staying much more often in the area where the battery "feels comfortable".

This means: I'd expect the internal battery to get worse earlier than on a device without additional pack with standard usage.

Please note that these considerations are on a level which may be called "luxury problems". Batterys are expected to get worse after some years. Current technology is good, you may not recognize shorter lifetime for 2-3 years. Maybe if you don't use it with a battery mod, you get the same level of battery capacity 4 weeks later. I can't judge it and I can't compare. Playing games where battery gets hot and used fast of course will worsen the battery earlier than staying at high level, then the additional pack sure makes sense e.g. for regular usage of apps like Pokemon Go.

Why do I write this? To tell people who think "I will not use my wonderful long lasting internal battery when using that mod so it will last even longer, although I don't really need that pack" to rethink if it makes sense what they are doing and if they don't achieve the opposite of what they want. RedRamage, this is not your intention when using the pack, and you probably are not the addressee of my posting. ;)
[Moto Z Play Accessories] :
I also thought about buying a battery pack, but I would only use it under certain conditions like longer weekends. On the other hand I think the battery life on the Z Play is quite good without and it isn't really needed.
[Moto Z Play Accessories] Nyoir:
That doesn't seem right but the only mod I've used so far is the Mophie 3,300mAh Powerpack mod and it's amazing. It makes the phone a bit chunky but if you don't have super weak hands and have a lot of screen on time or like to go hiking, use GPS, etc. It's amazing, it essentially doubles the battery in efficiency mode giving you absolute freedom from the wall or other power banks. Absolutely a good trade-off from my normal power bank.

TL;DR - Get the Mophie powerpack mod and a wireless headset that lasts all day and you're pretty set for walking about regardless of how long you're out or how much you stress the battery.

Oh! Of course it charges through the phone when you plug it in but can also charge separately. It also supports 30W charging and the texture is nice. It also has a indicator button with LEDs on the back so you can glance at the mod's charge.