yashsingh1/xdaforums huggingface dataset:
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] Vlad9ck:
Probably I described the issue incorrectly. Here is a screenshot of navigation drawer in the Play Store app. We can open it by swiping from the left edge. Same gesture is used for back action. So, when I want to open that drawer instead of going back, I just put-and-hold my finger on the sreen edge, so drawer appears and then I can drag it. For some reason that trick doesn't work for me in 95% of tries when tablet is in vertical orientation: swipe just triggers back action and exits Play Store. But when tablet is in horizontal orientation it always works (drawer opens). Same happens in all other apps with such drawers.

Probably it's an issue on the app's side: on Google I/O they mentioned that drawer should have priority over back action, but to get that app should use a new version of drawer lib. But anyway it feels strange that it works differently depending on screen orientation and again there's no such issue on my other Android 10 device (Pixel 2 running stock rom).
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] S-trace:
I don't have this issue - when I do this "swipe left-to-right and hold" gesture in the Play Store - it goes back one page and shows the previous page (with side panel shown or not - it does not important).

I think this is the right behavior - nothing should be able to break "back" action, as well as "home" action.
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] ibooth2004:
Safetynet appears to now be broken for me in the latest build. Has this affected anyone else?
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] S-trace:
I am affected too - ctsProfile is now False, but basicIntegrity is still true. Could you try to re-flash build 20200407 (or build which have passed the SafetyNet before) and retest it?
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] ibooth2004:
Okay I will try it tomorrow morning and get back to you because it's very late here in England.
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] Vlad9ck:
Actually it's "hold-and-swipe", please check this video https://drive.google.com/file/d/11OKAfkl5TU-d73sRO_H0-nTfxFSEeKjm/view?usp=drivesdk (recorded on 20200417 build).

I don't know whether it's a bug or feature, for me it feels pretty handy and again it works like that in pure Android 10 from Google. But if tablet is in vertical orientation in 95% of tries it just triggers back action.

Regarding "nothing should be able to break "back" action" - you are mistaking, there's an API for apps to exclude areas from back action. Here's video from Google I/O regarding that [youtube]OCHEjeLC_UY[/youtube]
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] S-trace:
41 minutes about nothing really useful?

Are you serious?

Could you please post exactly the timecoded link about the thing you wanted to tell?

Thank you!
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] Vlad9ck:
My video is only 11 seconds https://drive.google.com/file/d/11OKAfkl5TU-d73sRO_H0-nTfxFSEeKjm/view?usp=drivesdk

Regarding video from Google, it's why "nothing should be able to break "back" action" is wrong (probably not interesting if you are not developing Android apps):

- overriding gestures on 33:40

- gestures and navigation drawer 36:40
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] S-trace:
Ok, I got your issue,

But, my humble option is "anything-than-hold-than-anything" is defective by design, because it uses hold, and so permanently slows down user interface.

This is inappropriate!

However, this looks to be not this ROM issue, but generic LineageOS issue - could you please report this issue directly to LineageOS team too?
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] Vlad9ck:
Unfortunately I can't report to Lineage team because build is unofficial.

But anyway I believe it should be fixed in future on apps side when they get that updated drawer lib from Google.

Thanks again for your awesome work on this rom ?
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] m_esser:
That would be great :good: !

I am getting this message whenever I try to mirror the screen for remote control purposes to my PC independendly of the kind of connection.

For a wifi connection I am using AnyDesk as remote control sw and for connection via USB cable (with USB debugging enabled) I am using MyPhoneExplorer.

For both kind of connections there is a PC sw component and an Android client component necessary.

Btw, two comments regarding this issue:

I have the same issue on my Pocophone F1 (with LOS 17.1 as well)

Your Magisk module wouldn't be a solution only for me, because a lot of people have the same issue (look here). So it looks like you could become the hero for a lot of people ;).

Thank you very much in advance!

Best regards

m_esser
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] S-trace:
I'm sorry, but my Magisk module will be patch exactly for you only, and for anyone using the same device with еthe same firmware and ROM.

I (possibly) can develop a patch for any other ROM, but it will require a ROM developer who can build an updated ROM or patch for your device.

Do you have such a developer who wants to help you?

Sincerely, Soul Trace.
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] pndwal:
Are you using any form of Xposed? Or SafetyPatch or other modules that now (as of 2 weeks ago) break basicIntegrity?

https://xdaforums.com/apps/magisk/mod-magisk-v1-universal-systemless-t3432382/post82169951 PW

---------- Post added at 04:09 AM ---------- Previous post was at 04:04 AM ----------

Is that with MagiskHide Props Config module set up with MiPad4 fingerprint? PW
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] m_esser:
Hi S-trace,

first of all thank you very much for your fast reply and of course for the ROM itself.

Looks like I was coming from the wrong assumption that this is not device specific :( . I would highly appreciate if you could write this Magisk module for the MiPad if it's not a big effort so that at least the MiPad users can use it.

Unfortunately not ...

Thanks again and best regards

m_esser
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] ibooth2004:
I am not using Xposed or Safetypatch. I am using 3 magisk modules:

QuickSwitch

FontChanger

Full Screen Gestures

Safety Net worked flawlessly though with these modules in the previous build. I did try Safety Patch on the latest build to see if it would fix my problem but it changed nothing.

---------- Post added at 07:27 AM ---------- Previous post was at 06:52 AM ----------

I tried to dirty reflash the 20200407 build and the device would not unlock. Whenever I tried to unlock it it would be successful but then it would be a black screen and then return to lock screen. After this I restored my nandroid backup of 20200407 but it bootlooped. I then dirty flashed the latest 20200417 build and it is working fine but still with a broken Safety net.
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] pndwal:
Right.

That's as expected because SafetyPatch is one of the known modules causing basicIntegrity fail due to new Google detection as of 2 weeks ago. EDXposed was also triggering it, but new Canary builds are fixed. Google is now detecting unusual bind mechanisms etc, which causes SafetyPatch trigger, but it can be used after altering it's scripts (deleting the bind lines). MagiskHide Props Config with MiPad4 fingerprint is a better solution (see below).

I suggest you try core only Magisk mode to see if you can get basicIntegrity pass again. If successful you can turn it on, disable all modules but one and reboot to test which is causing fail.

You can only get ctsProfile pass after fixing this. With basic fixed, try MagiskHide Props Config with MiPad4 fingerprint. This still works'out of the box'. PW
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] ibooth2004:
I tried Magisk Core Only Mode and both BasicIntegrity and CTSProfile still failed.
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] pndwal:
In Magisk 20.4 and over, MagiskHide is off by default. Have you enabled it in settings? PW
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] ibooth2004:
Yes
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] pndwal:
Interesting. May be a ROM issue. I've still not moved from LOS 17.0 and have full pass w/ MiPad4 fingerprint. Sorry... Try toggling MagiskHide off /on again with reboots. Fixes for some. PW
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] ibooth2004:
This didn't work so I assume it is a rom issue. Hopefully [MENTION=4727726]S-trace[/MENTION] can look in to it.
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] Vlad9ck:
CTS profile fails even if device is not rooted at all, while all other checks show success.
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] Anand gaurav:
Coming from eu miui rom 8.1. I flashed recomand twrp, but it failed to wipe dalvik. Any solution?
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] TheIntruder:
To what? Instead of half a post how about you start from the beginning instead of expecting people to fill the gags in?
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] pndwal:
Don't use original 'recommand' TWRP in OP, or new official one for that matter. Use the other one mentioned in OP - Mokee TWRP. It sees / mounts data partition etc. See also:

https://xdaforums.com/mi-pad-4/development/rom-lineageos-17-0-t3989187/post82241271 PW

---------- Post added at 01:32 PM ---------- Previous post was at 01:19 PM ----------

Yes, even with locked bootloader due to China uncertified ROM.

Root however, currently allows full passing (read - enjoy working Netflix, banking apps etc from Playstore on this device) using 'certified' device fingerprint with MagiskHide and MagiskHide Props Config module.

Of course this is bound to fail whenever Google turns on Hardware Key Attestation again... Then it will be 'game over' even according to John Wu. PW
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] S-trace:
Which ROM have you installed before the update?
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] ibooth2004:
I was using your 20200407 build before I installed the update.
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] S-trace:
So, I don't think this is a ROM issue - I have changed nothing which can affect SafetyNet.

It should be a Google issue (Google intentionally changed SafetyNet check recently to break many custom ROMs).

Could you please remove "Sent from my Pixel 2 using Tapatalk" note?

This is just spam for this forum - nobody cares about the device you are using to post your messages.
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] ibooth2004:
Okay I will wait for some Magisk devs to come up with a fix. Also sorry about the Tapatalk message it has it enabled by default after installing it.
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] rori1977:
Feedback from first installation

Reporting from my today's fresh install, lineage-17.1-20200417-UNOFFICIAL-clover.zip on MI PAD 4 (WLAN only).

Installation worked fine however here are a few observations during the setup phase, which I would like to feed back.

1.) During flash, the TWRP output (in the progress messages) shows, that the model is "WAYNE". That scared me a lot because I thought I have chosen the wrong ROM. This should be "CLOVER" to not scare people (like it happened to me).

2.) GAPPS / Family Link. I am unable to link my MI PAD 4 CLOVER (device of my son) to my (parental) phone. Reason is that linking the device is not possible, as Google provides a 6 digits code (123345), whereas the GAPPS on my Mi Pad 4 expects a 9 digits (123-456-789) code. I assume this is a upstream problem in GAPPS.

3.) When signed in with Google, the device identifies as "Xiaomi MI 6X" and not as Mi Pad 4.

Keep the good work and thanks for the ROM! :)
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] S-trace:
Yes, my tablet shows this "wayne" device name too, but I have not cared about this.

Maybe I will fix it later (but don't promise, because it's not the critical bug for the device).

Could you please try to install the latest GApps from OpenGapps site ( https://netcologne.dl.sourceforge.n...00418/open_gapps-arm64-10.0-nano-20200418.zip ) ?
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] pndwal:
Are you able to fix ctsProfile with MagiskHide Props Config module set up with MiPad4 fingerprint? PW
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] lobbos:
I just updated via OTA updater (download was fairly fast) and everything went smoothly.

According to Magisk my device still passes SafetyNet as before.

I also noticed that a bug from previous versions is fixed:

before my lockscreen wallpaper was always the same as my homescreen wallpaper. In this version it uses the correct wallpaper I set for the lockscreen.

Thank you for the great update and ongoing support, S-trace!
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] pndwal:
Resource - Magisk and MagiskHide Installation and Troubleshooting guide:

https://www.didgeridoohan.com/magisk/MagiskHide

This may help. PW
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] rori1977:
After reinstalling gapps using the link provided, I can confirm that the device is now shown correctly as Mi Pad 4, as expected, in my Google account.

Also the parent/child relation in Google Family Link is established sucessfully and Mi Pad 4 shows up as successfully paired.

In reality, however, there ist no data exchange between my phone and the paired tablet of my son.

No screentime gets recorded and reported back to me (Tablet -> Phone) and also no config updates (Phone -> Tablet) can be sent to the Mi Pad 4, e.g sleep time.

Futhermore there are problems to sign in to "Google Play Games", once games are started, which try to utilize that service.

So partial progress still, using GAPPS: Google Family Link / Google Play Games to be precise.

Any hints or ideas are appreciated, however this looks like a Google / GAPPS problem, right? (How) Can I debug this? Any logs I could check? Still a novice, please guide me to the correct logfile+location, if applicable.

Probably it is best to keep riding the latest GAPPS version, once they become available, to see If the situation will improve over time?

Cheers and thanks
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] ibooth2004:
Does your device pass safety net? You can check with Magisk Manager even if you don't have Magisk installed. I would like to know to see if reflashing GAPPs could fix my issue.
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] TheIntruder:
Mine does but only after magisk... SkyGo had stopped (this that thing again lol) after a couple of updates ago.. Was good while it lasted
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] ibooth2004:
Thought you weren't bothered about Magisk or any of its buggy add-ons. Only joking mate [emoji23]. What build of Lineage are you using is it the latest?
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] TheIntruder:
Hate it but want skygo... Latest version of this rom magisk 20.4
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] ibooth2004:
It's going to be a pain but I think I might try a fresh install of the rom tomorrow to see if that fixes my problem.
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] TheIntruder:
Not touched gapps
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] pndwal:
SafetyNet is certainly GApps related, which is why no SafetyNet check appears in manager with no GApps installed. Which GApps are you using? PW
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] ibooth2004:
Open GAPPs nano 20200324, I have being using them since [MENTION=4727726]S-trace[/MENTION] first build. That was the last time I clean flashed my tablet so when I updated to the latest build there was no need to flash GAPPs.
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] pndwal:
Yeah, Open GApps are generally good. Could try reinstall as a longshot. Also, check have latest firmware (longshot also).

Was basicIntegrity fail triggered immediately after a dirty ROM flash? Or other? PW
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] marcus.zheng:
Quick heads up, updated via OTA this morning from 20200407 to 20200417. The 1st thing I noticed was getting "Pixel Launcher Keeps Stopping" error, tried to clear cache and storage, flashed Pixel-Stuff modules, reboot few times didn't help. I'm using for Trebuchet launcher for now which seemed to work fine

Note: my ‎TWRP is normal version 3.3.1-0 (no decryption)
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] ibooth2004:
Both CTSProfile and BasicIntegrity both failed after a dirty flash. In the end I gave up and just clean flashed the latest build and with MagiskHide enabled so now both CTSProfile and BasicIntegrity finally pass.
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] falver:
Flash the last build yesterday (clean flash), coming from the last official MIUI build, and this worked flawlessly! Seems to have the same battery life and

The only issue I encountered was that some (DRM) apps were not available in the Play Store, e.g. Netflix - seemed to be related to Safetynet failing due to a mismatch in the CTS profile. After installing Magisk and enabling MagiskHide, the SafetyNet test passed and I could download most of the apps.

However, some not through the Play Store on the Mi Pad but I can download them on the Play Store on my laptop to the Mi Pad :eek:
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] seeayesix:
Exactly how did you get this to work? I was able to push Netflix to the tablet via play.google.com on my PC, but Netflix crashes when I try to start it...
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] banesi:
you dont need to, you can flash Netflix using twrp
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] EggZenBeanz:
Theres a Magisk module disable crypto lib. Install this reboot and you're good
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] EggZenBeanz:
Hi [MENTION=4727726]S-trace[/MENTION]

Is the intention to make Clover builds official with Lineage OS 17.1?

Thanks
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] ericcostes:
Hello Guys ,

what are the last good version number for twrp and magik, to make a clean install from my stock 8.1 basic version mipad 4 ?

thanks a lot :)

Patrice
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] m_esser:
Hi,

I have installed LineageOS 17.1 in the following order with below mentioned sw components:

Recovery - OrangeFox instead of core twrp:

https://files.orangefox.tech/OrangeFox-Stable/clover/

Firmware V10.3.2.0.ODJCNXM:

https://xiaomifirmwareupdater.com/archive/firmware/clover/#

LineageOS V 17.1

https://drive.google.com/file/d/1_u8rVHBOa0HMA-SHgWsYbXznjR9WnZIt/view?usp=sharing

OpenGapps for Android 10:

https://opengapps.org/

Magisk Version 20.4:

https://github.com/topjohnwu/Magisk/releases/download/v20.4/Magisk-v20.4.zip

Disable DM-verity / Encryption /quota:

https://xdaforums.com/android/software/universal-dm-verity-forceencrypt-t3817389

For me this current configuration is running smoothly (apart from this aspect)

But to be honest - I am using my MiPad only rarely.

Best regards

m_esser
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] ericcostes:
MiPad4 pre root is it required to install LOS 17.1 rom ?

hello Guys :)

my clover isnt rooted ( rootcheck negative ! )

I wonder if I must root it before installting TWRP or LOS17.1 ?

how to acheive this root install please , if effectively required ?

thanks for your advices !

regards,

Patrice
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] pndwal:
Please read OP (opening post). All info needed is clearly spelled out there, as is usual. Root = step 6.2, under 'optional'. PW
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] dorkshoei:
I'm still running this build (need to update) lineage_clover-userdebug 10 QQ1B.191205.011 eng.rcstar.20200106.133628 test-keys

I have a system profile setup called "Home WiFi". Its a copy of the default profile with 2 changes. Its activated by a connection trigger to my home WiFi and has a lock screen mode setting of "don't ask for pin or password". Default profile is entered when I'm not connected to home WiFi.

The issue is that after a while it stops working. And I need to enter a pin on unlock. Once unlocked if I view the active profile, it is set to "home WiFi" but its stopped working.

If I turn "system profiles" off and back on, "home wifi" is still the active profile and it's back to working for a while.

Any ideas? I'm forced into above because "trusted places" doesn't work either, I've tried moving the circle area, still doesn't work.

Anyone have any ideas? It feels like its a,bug, though I doubt in the port.

Settimgs->System>System profiles
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] JeeHaa:
Upgrade tip: I just upgraded from a 2019 10.0 ROM to the latest 10.1 on several Mi Pad 4 devices while keeping all App Data.

A dirty upgrade did not work, but this looks fine so far: apps start, upgrade and even OTA works!

- Create TWRP Backup of 10.0

- Clean install 10.1 + Gapps (Wipe Data)

- Restore only Data from 10.0 TWRP backup

No guarantees, a clean install is still recommended anyway.

Thanks for this great ROM!
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] ericcostes:
ALL these paritions are they usefull on my LOS 17.1 clover ???

Hi Guys , ;)

Now I got my clover unrooted , no encrypt, installed with last LOS 17.1 , this is very good upgrade as I came from original xiaomi 8.1 rom !!!

When I made a first TWRP backup I could see many partitions to backup , and wonder if they are all usefull as I moved to LOS ??:confused::confused:

BOOT : 64 MB

CACHE : 84 MB

DATA(excl.storage ) : 3115 MB

RECOVERY : 64 MB

SYSTEM : 2005 MB

SYSTEM IMAGE : 3072 MB

VENDOR : 425 MB

VENDOR IMAGE : 2048 MB

MODEM : 273 MB

EFS : 6 MB

Please can you confirm which one must be backuped ?

For example system image and vendor image are they usefull ? If no , how can I suppress these partitions ?

Thanks for your advices :o

best regards,

Eric:cowboy:
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] dorkshoei:
[MENTION=4727726]S-trace[/MENTION] have you given any consideration to starting a new thread since you've taken over development?

Currently you don't own the first post in this thread so you can't edit it, so it's a case of scrolling back through pages of this thread to connect the comments from you, or to find the link to the latest version.

I understand that certain people like pndwal have the entire thread paged in ;) but I'm finding it challenging to figure out the latest info.
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] pndwal:
Since thread and project have been transferred to [MENTION=4727726]S-trace[/MENTION], OP IS up to date, including latest S-trace ROMs (20200417 presently). OP's name may still be confusing. :cowboy: (And thanks for the compliment.) PW
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] EggZenBeanz:
Back them all up. If you have a external card, back up all partitions to that and you're good. Can't harm to back up everything right?
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] dorkshoei:
See, I knew you had it all paged in. Thanks. Much appreciated!!
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] reg66:
I might be wrong. But you only need to back up system image and Brenda) vendor image, not system and vendor as well. No point backing it up if you have backed up the images.

At least that's how it was with xiaomi phones; I haven't yet flagged twrp on this phone, so can't say for sure.

With xiaomi devices at least, it was my understanding that backing up the images the more reliable option

EDIT: Man in such a numpty lol! I answered this thinking I was in my main device thread: asus rog phone II.

So yeah, as far as I'm aware, the above info is right
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] Kazryu:
Will magisk and twrp broke after using OTA update?

Cause im still not sure if it will break or not, i need someone to confirm this, thanks in advance
[Xiaomi Mi Pad 4 ROMs, Kernels, Recoveries, & Other] ericcostes:
all partitions usefull ? save all partitions ?

yes this can't harm :)

but I wonder if I could have some free space more on my device when supressing these partitions ...:o

Eric