yashsingh1/xdaforums huggingface dataset:
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] mimi73:
thank you man for the information

i am still waiting from oreo untill now...i'am in pie and iwant a simple unlocking Boot loader and twrp and root like the others phone
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] Klaus N.:
As I didn't try it yet: Is it possible to relock the bootloader again with the XZ2 device? I'm just asking because of the changes coming with the latest Pie (.126) fw...

If relocking would be possible, then I would

1st downgrade to the oldest XZ2 Oreo fw I have on my pc and

2nd relock the bl

3rd upgrade to Pie .126 fw

4th unlock the bl again and

5th install all the Pie TWRP stuff Martin provides...
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
Sadly only the sony developers can do a relock. :(
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] Klaus N.:
Thanks for the quick reply. I already supposed that it is not possible.

Has someone already tried to get it relocked by the Sony devs? Are there any requirements (apart from the costs)?
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] BigBudss808:
Hello, I am not able to Flash the vbmeta. I always get: fastboot: unrecognised option `--disable-verity. So now I try to restart my phone but it does not work ( I´m stucking in the bootloader). After that i tried to Flash the stock firmware with newflasher, but every time I see this: No usb device with vid:0x0fce pid:0xb00b. My phone is from Germany. Thanks for any Help!
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] dhacke:
Regarding newflasher:

I had the exact same error. You need to have the driver for flash mode. Otherwise your phone will not be recognized by the tool.

Regarding vbmeta:

First ensure that your plattform tools are on the newest version (i have version r28.0.1 and by me it worked).

And what exactly did you type for the vbmeta file?
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] BigBudss808:
Tanks for your Help. I type in : fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img. I also use the Version 28.0.1 on Windows 10.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] dhacke:
Well that looks good. No typo in my eyes. Just to be sure your phone is recognized in the fastboot mode, right?

And do you use Powershell and opened it in the plattform tools root folder?

Btw does newflasher works now by you? Would be at least a little success.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
Good news for the decryption support in the future.

https://gerrit.omnirom.org/#/c/android_bootable_recovery/+/32746/

I am working on it and will merge my work into the Omni tree.

And thanks to the Sony aosp developer oshmoun. :)
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] laoli0913:
Why not build onmi for akari additionally?:silly:
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
It would be possible

But I don't have unlimited free time between studies and m my job and my girlfriend :silly:

Maybe I can, maybe not.

And maybe I don't have enough free online storage (unofficial builds) until it gets officially :silly:

But I will see.

At least I am happy that I completed the minimal Omni twrp 9.0 build environment.

https://github.com/minimal-manifest-twrp/platform_manifest_twrp_omni/pull/28

But I still need polishing.

Feel free to help the Omni project.

They need volunteers.

It would speed up the 9.0 development which includes TWRP, because it is their standard recovery.

So you see there is progress behind the walls :highfive:
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] laoli0913:
I don't have enough time to deal with lineage too. I'm studying how to complete the unofficial rom in my spare time.:silly:

Still thanks for your hard work on akari.:highfive:
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
Thank you :)

A work full of madness, pain, tears and gathering new knowledge :silly:
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] laoli0913:
But I think it is worth. To me to everyone who use akari.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
Yes, I think the same :)

Thank you :)

And Apollo and akatzuki and the XZ2P :silly:
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] BigBudss808:
Yes newflasher is working now and Powershell is opened in the plattform tools folder. I dont unterstand why its not working.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] dhacke:
Hm ok. Did you use the standard driver from google or the sony driver for the xz2 from their development site?

I believe that i used the USB driver directly from sony and mayby that is the solution?.

I think it's worth to try it.

When it's not working i must pass. Sry.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] BigBudss808:
I finally have the solution: I make a Virtualbox running Windows 8.1. It works perfect.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] dhacke:
Very strange. I never hear from this solution but i'm happy that it's working now?
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
Seems like my minimal omni twrp 9.0 is complete.

Will compile a bootimage.

I i am lucky, this bootimage will decrypt userdata.

I hopefully cherrypicked every needed commit.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] duraaraa:
I've been trying to fix these issues. I got a XZ2c Dual Sim, which someone had already unlocked.

I just want to get the camera working again so I can give it as a Christmas present.

I have no trouble following the instructions, but regardless of which Oreo build I install, I never get any bootloops or anything, but after following the "DRMfix" step (which I think is Xperifix, right?) the camera never works. Stays black in the viewfinder, doesn't let any 3rd party apps work with the camera, and so on. Of course, same situation in Pie.

What I'm doing is essentially...

1. Installing Oreo with newflasher

2. Installing twrp with the guilde in the first post, and all the latest files for Oreo.

3. Installing magisk 17.1, but I tried other versions as well.

4. Using Xperifix

5. Installing magisk modules to set selinux to permissive.

But I haven't seen the camera work once.

Am I missing something?
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] laoli0913:
M-rom seems solved the data decryption. Do I need to upload it to here?
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
Does he provide the source/device tree?

Because dees_troy fixed it / added support for our encryption and oshmoun provided a recovery repo on GitHub where he cherrypicked the needed code patches. (Still only on Gerrit for a review and not committed into the main TWRP repo on GitHub).

Oshmoun has a working TWRP decryption on his XZ2C with AOSP/OMNI.

BTW after the aosp ROMs got compiled , I will compile TWRP again, with encryption support.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] laoli0913:
No, just files. It seems don't have the rules of showing the device tree in gfan.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
I don't like that.

I prefer showing the source and mention the work of others.

BTW. Maybe I can implement a universal solution for the touch problems.

The Sony developers told me that mounting the ODM/OEM/VENDOR partition should activate the touch drivers. :silly:
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] laoli0913:
BTW, any news of the TWRP for AOSP?
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
My AOSP builds are at 80%, then I will recompile TWRP for stock and then for AOSP. :)
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] laoli0913:
M-rom use this zip to disable the data decryption. I will try on your Nov TWRP first. And than wait for your AOSP and the twrp.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
december TWRP works fine, too :)

I don't want to disable the encryption, i want to support decryption. :)
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] laoli0913:
Actually, it doesn't work on your Nov build, and causes bootloop. I think M-ROM used different way to complete the TWRP (who knows)
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
If you use a chinese or USA stockrom, it is not compatible.

something is different there and i think it would need to make sperate TWRP with the chinese/USA kernel.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] laoli0913:
No, I'm using In ver. TW ver don't have Pie yet.:silly:

Seems his zip can't used on your twrp.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
The firmware which my 8.0 twrp in the android 8.0 mega drive folder supports is 51.1.A.11.51 :P

Maybe the script can't mount the vendor partition, but I wouldn't install custom fstab files and use the one from the stock firmware. :)
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] laoli0913:
I need Android Pie. I don't know what jobs the developer of Sony TW are working on.=.=a
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
I flashed a different firmware on my H8296. :)

The German H8266 in my case :P

Of course you could switch to IN or Chinese if your mobile network frequencies are the same. :)

Or you won't get the optimized stuff and only standard mobile network access with standard quality.

Or in the case of USA verizon no access at all.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] laoli0913:
So I'm using IN. And your twrp works well but m-rom's zip cause the bootloop.

I'm downloading the 126 version now in 100kb/s. I don't know why the download speed of xperiafirm is always slow.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
Great news. :)

My TWRP works world wide, except the countries USA, China and maybe Taiwan. :)
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] laoli0913:
Taiwan version works well (Oreo I mean:silly: )
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
Woopsi, that're greater news :D

So I only exclude 2 little countries in the world, because nobody told me they need my TWRP there. :silly:
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] laoli0913:
Almost all of the Chinese users use m-rom's TWRP.

So only the last one.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
I moved the TWRP folder inside of the stock folder in preparation for the AOSP twrp. :)
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] dhacke:
[MENTION=6031898]MartinX3[/MENTION]

I ask you in this thread because it's a question regarding twrp.

You said in the aosp thread that the current twrp with the stock kernel may not boot the aosp rom and we probably need the aosp twrp for this.

Does it mean that the aosp twrp doesn't boot the stock system?

Because then we would need to change every month the twrp to apply the stock updates and boot the aosp rom after that.

That would be not so nice.

Or am i wrong with my thoughts?
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
This TAMA device has a dtbo partition and a boot partition :)

In the past this was combined in the boot partition.

So these 2 things need to be compatible to each other or the device will refuse to boot.

Which means, that there is a high chance, that you can't boot the stock rom with the AOSP kernel and the AOSP rom with the stock kernel. :)

Aaaand the recovery partition got integrated into the boot image.

Means, that it need to include the kernel, which will boot the device and be used by your rom. :angel:

And you need only newflasher v13 to install the stock rom, boot it one time to update your baseband and install again via fastboot the AOSP ROM.

I need someone who want's to test my AOSP boot image containing the TWRP.

Maybe in AOSP it works ( which doesn't work correctly in Stock ROM).
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
Seems like I need the location of the libgptutils.so for a working decryption....
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
After I compiled a working AOSP image, I will look if the decryption works with AOSP.

The partition layout is different than stock and research is needed which things need to get adapted to transfer the AOSP solution onto the stock rom.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
https://github.com/MarijnS95/device-sony-tama/commits/twrp

After oshmoun (primary XZ2C), here is a second guy helping to stabilize the AOSP TWRP decryption, which will it hopefully make easier to adapt a working decryption on stock.

TWRP 9.0 and it's decryption, especially our new metadata encryption (plus the XZ3 uses keymaster 4.0 and the XZ2 uses Keymaster 3.0) is still work in progress by the developers.

Even the initial commit to support our decryption is still not merged into the master branch.

https://gerrit.omnirom.org/#/c/android_bootable_recovery/+/32746/

So it will take its time. :)

But we are getting more TAMA developers (our hardware board) over time.

I see a bright future for our TWRP and custom ROMs.

Together we will win. :)

PS:

I switched completely to the Omni 9.0 device tree's and build environment.

https://gerrit.omnirom.org/#/c/android_device_sony_akatsuki/+/33172/

https://gerrit.omnirom.org/#/c/android_device_sony_akari/+/33170/

https://gerrit.omnirom.org/#/c/android_device_sony_apollo/+/32929/

Which will provide us a better TWRP image with better error diagnostic tools (logcat).

A first test build worked great. :)
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] laoli0913:
Once the omni for xz2/c/3 get work. The other roms will come out soon I think.(just need the device tree, common tree and vendor I think)
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
the good news are that I know 2 sony developers already using omni on their xz2c and their xz3.

I will compile it today for my xz2 to see if it boots.

Then I will compile the sony AOSP again to see if the boot error dissappeared, too.

Then I can provide a new AOSP build and provide TWRP. :)

Omni is based on the sony AOSP for our xperia devices. :)

But of course it is still under work.

The camera needs to get fixed and the decryption needs to be pushed into the mainline code of twrp, etc. :)
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] ultimate lg:
my xperia xz2 doesnt go into fastboot like do adb reboot bootloader but it restarts goes black blue led light and thats it the pc doesnt recognize any fastboot devices help lol
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] dhacke:
Well if your phone show the blue light it is in the fastboot mode (which it does when i understand you correctly).

So next question:

Is the fastboot driver installed?
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] ultimate lg:
yep ive all the drivers installed and like lmao ive rooted and flashed roms on like 15 different phones idk y this is a problem
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
I have the weird fastboot problem with my XZ2 that it likes to throw random errors or that my device reboots after executing fastboot flash ...

I am not able to execute fastboot flash stuff.img two times, because at the second time it throws me a weird error about exceeding download size.

So I need to

fastboot flash stuff.img

fastboot restart

fastboot flash stuff.img

etc.

I firstly thought that this made my AOSP ROM crashing on my phone all the time.

But since OmniROM 9.0 is running fine on my phone (and on XZ2C and XZ3) these are only cosmetically errors, which doesn't corrupt my phone.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] neoneo2000:
What should I do DRMfix (Optional)? I could get ROOT and installed TWRP android8 and 9.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] neoneo2000:
DRMthing is xperifix?
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
Yes and please don't reply to Such a big Post from the first Page :P
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] neoneo2000:
Hi Sorry, I modified big post.

and TWRP ROOT and DRM FIX fine!
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] Mercedesb200:
Problem with [FASTBOOT] fastboot --disable-verity --disable-verification flash vbmeta

PS D:\se> fastboot flash boot twrp.img

target reported max download size of 536870912 bytes

sending 'boot' (32776 KB)...

OKAY [ 0.968s]

writing 'boot'...

OKAY [ 0.309s]

finished. total time: 1.281s

PS D:\se> fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img

C:\adb\fastboot.exe: unknown option -- disable-verity

PS D:\se>
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
is the output of

fastboot --version

at least

28.0.1-4986621

or a higher number?
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] shoey63:
[MENTION=6031898]MartinX3[/MENTION]

I modified your twrp to make flashing of AOSP images easy on the device.

So image flashing includes : -

- boot.img

- system.img

- vendor.img

- dtbo.img

- oem.img

- vbmeta.img

Here is the GDrive link https://drive.google.com/file/d/1ps71OMGJXNYhMq3V6LWHatMHcmMZWQ6O/view?usp=drivesdk

Works fine when flashed to /boot.

But I can't add the modified twrp.fstab to the ram disk-twrp.cpio archive in the twrp installer without breaking it. Flashing the modified zip does nothing.

I used 7zip in Linux to unpack and modify etc/fstab.twrp and archiver to repack as CPIO.

What is the correct method?

(Feel free to use and distribute)

Edit: And Happy Christmas ?

Be good or Black Pete will put you on a boat and take you to Spain ?
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
Thank you :)

But at the moment, this AOSP is on hold, because it doesn't work on the XZ2. :(

https://github.com/sonyxperiadev/bug_tracker/issues/283

And many thanks trying to help. :)

Regarding to the packing problem, I use the

file-roller:
Installiert: 3.28.0-1ubuntu1
Installationskandidat: 3.28.0-1ubuntu1
Versionstabelle:
*** 3.28.0-1ubuntu1 500
500 http://mirror.netcologne.de/ubuntu bionic/main amd64 Packages
100 /var/lib/dpkg/status

I just double click on the archive, then it opens a window like 7zip.

There I can double click on a file, modifying it with a text editor and just save it or move files in this window.

I can also recursively modify files in archives in archives in archives etc :silly:

And about AOSP:

After they fixed this bug, I will compile a new release with a TWRP build-in. (I added a local_manifest file)

In AOSP we don't need an twrp-installer, like on OmniROM 9.0.

It just starts the system and the twrp. :)

Edit:

Merry Christmas you too. (☞ﾟ∀ﾟ)☞

May the "Knecht Ruprecht" not catching you! (ง ͠° ͟ل͜ ͡°)ง
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] adwinp:
I noticed that you mentioned running a H8296 with H8266 firmware; has anyone tried it on a H8266 itself?

Singlesim builds should boot on dualsim variants, however the 2nd sim slot will be inactive.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
The complete mobile access is offline, because of the difference manifest files and environment parameters.

Like you can see on my omnirom 9.0 single sim build I took screenshots of. :)

(News section on xda -> searching for volunteers)

And it shouldn't make a difference.

Single and dual SIM aren't booting, while the Omni 9.0 boots fine and is usable. :)
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
Tomorrow I will make a new AOSP build and test it.

According to jerpelea the went bug away.

Maybe a commit fixed it. :)
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] laoli0913:
My New year's holiday comes! I will start my work on lineage tomorrow. I will pm you if I get problems:silly:
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
Nice!

Just fork every OMNIROM device tree repo and replace the word omni with lineageand look into the github lineageos device files :D

that should help you very much. :)
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] laoli0913:
I know these steps, I have built ROM for my P10 plus in the past. Maybe there will be some unexpected error during I build the ROM
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] Fs00:
Pay attention when restoring TWRP backups!

I'd like to share my experience with TWRP backups on my XZ2C, so that it can be helpful to others.

If you backed up system and/or vendor partitions and you want to restore them, make sure that TWRP setting "Use rm -rf instead of formatting" is set! Otherwise the recovery will recreate those partitions in a way that prevents the phone from booting up and you'll need to reflash everything using Newflasher.

@MartinX3 I think that this should be put in the first post under "Hints" section.
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
Thank you, I will add it. :)

The TWRP is still under construction by the TWRP team, but sadly they need more developers reviewing there code changes before adding it into the mainline TWRP or fixing bugs. :)

[MENTION=8058538]Fs00[/MENTION] What's the usecase of saving the vendor/system partition, since you can use newflasher or in the AOSP ROM world just the .img files / installation zip's ?
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] mimi73:
When will the TWRP AND ROOT become OFFICIAL?? i'm still without unlocking bootloader and i'm on pie .126
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
I personally plan first to publish working AOSP rom's.

Maybe OmniROM's too.

Then I think it is easier to let the AOSP TWRP become officially.

Because its kernel is used in OmniROM, AOSPRom and later LineageOSROM, too.

And since the DTBO is in its own partition and we can't use

fastboot boot twrp.img

on our XZ2/C/P devices (i heared it worked on the XZ3), I need to make 2 different kinds of TWRP for the devices.

I don't know if 2 different TWRP for the same device can become official.

Maybe the stock one will stay on "unofficial" forever.

But "unofficial" doesn't mean "unstable". It just means, that I need to build it myself and don't get a TWRP homepage.

Of course I can just integrate TWRP in the AOSP/OmniROM, but then bootimage need to get build as -eng instead of -userdebug.

And after the OmniROM become official, it won't have TWRP anymore buildin, because it get's build by the OmniROM build servers.

PS:

Root will never become "official". :D
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] mimi73:
thank you for replying.....so we will wait until unlocking bootloader and Recovery become stable on stock firmware without any problem on noise reduction and camera ... or take the risk of unlocking bootloader on pie .126 and waiting AOSP and OmniROM .
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
Officially that should never be the case.

The weird drm change since .126 wasn't communicated by Sony.

In the past unlocking the camera Everytime results in loosing functions, mainly the camera.

It would be a wonderful if it happens again.

But who knows how they will close this issue ticket?

https://github.com/sonyxperiadev/bug_tracker/issues/261
[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] xdaSonyhelp:
Help TWRP on Oreo for XperiFix

Happy new year.

Please help me.

I had an H8266 with Pie (DE_1313-6279_52.0.A.3.126 over OTA updates).

Here i unlocked bootloder. The camera was black after doing this.

Then i downgraded to Oreo CE1_1313-3193_51.1.A.11.51 with newflasher.

After this the System works normally.

Now i want install TWRP on Oreo for using Xperifix.

[FASTBOOT] twrp-3.2.3-0-xz2.img

[FASTBOOT] vbmeta-xz2.img

[TWRP] stockkernel-xz2-installer.zip

[TWRP] twrp-3.2.3-0-xz2-xz2c-xz2p-installer.zip

[TWRP] flash Magisk 17.1

Reboot into SYSTEM

All went without problems.

But after reboot the system does not boot (bootloop). After a while it powers down.

Boot to Recovery is not possible.

I can only go into fastboot or flash mode. Recovery is not possible.

Perhaps somebody can help me (perhaps in german?). What do i wrong?

Sorry for my bad englisch.

Thanks very much.