yashsingh1/xdaforums huggingface dataset:
[OnePlus 3 & 3T Cross Device Development] iAmWiz:
Ha! Okay, thanks. Seems reboot is the new mother of all fixes
[OnePlus 3 & 3T Cross Device Development] scanno:
In this case [emoji16]
[OnePlus 3 & 3T Cross Device Development] tbarrettjr:
Looked but haven't found a real solution...I flashed latest build with opengapps and beansgapps but both times I got play services FC. Clean flashed. No root or custom kernel.
[OnePlus 3 & 3T Cross Device Development] Delpo_96:
delete android folder in /sdcard
[OnePlus 3 & 3T Cross Device Development] rob rich:
I have to reboot my phone more than 10 times a day, thanks to Omni Team.

Because the Oreo Bootanimation is so cute, that my 5 year old daughter wants to see it over and over again :D

I'm using the Oreo Version since start and I have to say this is working really really good, especially the 2 latest builds. I even see no reason to change the kernel, it's top.

And thanks for built-in aggressive doze feature :)

I have yet to find a bug. Absolutely no problems here with the latest builds. Totally recommended.
[OnePlus 3 & 3T Cross Device Development] SH1M4BD3:
Damn its feel right , awesome + SluttyStrawberries perfect!!
[OnePlus 3 & 3T Cross Device Development] Wilguens Joachin:
What theme you using?
[OnePlus 3 & 3T Cross Device Development] mauley:
Let me get this straight. The latest link posted by maxxwen, is that 8.0 Oreo build?
[OnePlus 3 & 3T Cross Device Development] SH1M4BD3:
It's Nineteen by De Jan

---------- Post added at 07:49 AM ---------- Previous post was at 07:48 AM ----------

Yup latest one sir
[OnePlus 3 & 3T Cross Device Development] mauley:
Thanks for confirming. As I understand I will need bluspark twrp 47 and will I need the OB25 firmware as I have a OP3?
[OnePlus 3 & 3T Cross Device Development] laupuy:
Hi,

I'm on OB 24 firmware (latest Nougat) and latest twrp blu_spark 47 and the last Omni.8 is good :good:

Didn't test latest OB25 (oreo) firmware...
[OnePlus 3 & 3T Cross Device Development] mauley:
Thanks for the reply. I will give Omni a try today.
[OnePlus 3 & 3T Cross Device Development] ele95:
i flashed omni homemade 8 with stock gapps and the system is very laggy , any ideas why
[OnePlus 3 & 3T Cross Device Development] Sam Nakamura:
Reboot once and it should be fine...
[OnePlus 3 & 3T Cross Device Development] ele95:
ill try it , thank you
[OnePlus 3 & 3T Cross Device Development] laupuy:
Please, read some posts above and couple pages back.

1. Reboot the phone

2. Delete Android folder from /sdcard and reboot

This rom is very good :good:

Edit. Arf, too slow :p
[OnePlus 3 & 3T Cross Device Development] Delpo_96:
May i suggest the implementation of a native app locker? :D
[OnePlus 3 & 3T Cross Device Development] webore:
what do you mean by app locker ?

Try to set omniswitch as your recent ,you can lock the app you want from being killed by kill all button .
[OnePlus 3 & 3T Cross Device Development] Delpo_96:
I mean Locking an app with a pattern/fingerprint which prevents someone to open it ;)
[OnePlus 3 & 3T Cross Device Development] Nemuritor01:
Hey guys... ROM is working awesome. Thanks for your work!

Just one question.

Changed Kernel settings in Ex-Kernel Manager do not stick, after reboot. Can someone confirm?

Further, can you guys implement the aptx libs into the build.

Those here are working well with latest build!

https://xdaforums.com/oneplus-3/one...aptxhd-oreo-beta-25-16-op-3-3t-t3690363/page2
[OnePlus 3 & 3T Cross Device Development] RohanAJoshi:
Is f2fs supported on newer builds ?

I remember old builds (before weekly) was only supported for ext4.
[OnePlus 3 & 3T Cross Device Development] maxwen:
Yes - just why would anyone use a bad filesystem freely? ?
[OnePlus 3 & 3T Cross Device Development] RohanAJoshi:
Woot, going to flash this soon.

I have lots of data on phone, don't have time for full backup and and go back to ext4, so stuck with f2fs.
[OnePlus 3 & 3T Cross Device Development] kldoc:
I highly advise you to backup everything, f2fs got updated, and I can assure you the new rev is not retro-compatible, if you want to lose evrything, way to go ...

Hopefully, you read me before killing your data :p
[OnePlus 3 & 3T Cross Device Development] RohanAJoshi:
Thanks, I will take it as warning.

But I m easily using other roms like Laos, aosip and stock oxygen os 4.0.2

So, is there still risk ?

I mean to say, omni rom's f2fs is different/updated than others ?
[OnePlus 3 & 3T Cross Device Development] calvinistmac:
Take the time, backup your data, and convert your filesystem back to the tried and true ext4. You'll thank us later and run into less trouble in the long run. F2FS is a dumpster fire, no matter what anyone says.
[OnePlus 3 & 3T Cross Device Development] kldoc:
Can't agree more, I switched to f2fs mostly to bring support and have a procedure for users, but outside of perf gained while opening apps, f2fs is more a pain in the *** than anything else. Non journalised file systems shouldn't even exit !
[OnePlus 3 & 3T Cross Device Development] abalam:
I running /data in F2FS and NO problems with this rom. Apps running fast and start fast up. I have encryption turned off. Maybe it benefited from F2FS
[OnePlus 3 & 3T Cross Device Development] teddybear3k:
HI,

in attachment, the file alogcat with the crash of alarm clock.

Ted
[OnePlus 3 & 3T Cross Device Development] maxwen:
Fixed in next

As a workaround make sure a default alarm sound is set in sound settings
[OnePlus 3 & 3T Cross Device Development] MarcoLK:
I can use every sound and I have no crashes
[OnePlus 3 & 3T Cross Device Development] Antsu:
Hi [MENTION=4683552]maxwen[/MENTION] and [MENTION=2604804]kldoc[/MENTION] Could you think of adding black theme also, besides light and dark?
[OnePlus 3 & 3T Cross Device Development] jejemc:
Hello can we reverse the back button and spot on this rom I'm not found? thank you ;)
[OnePlus 3 & 3T Cross Device Development] calvinistmac:
If you read back in the thread this has been addressed.

Use this app:

Button Mapper: Remap your keys
[OnePlus 3 & 3T Cross Device Development] maxwen:
its only if you never set a different one - clean flash
[OnePlus 3 & 3T Cross Device Development] maxwen:
Huh?

I have to recall my previous post

WTH have you done to get this????
[OnePlus 3 & 3T Cross Device Development] teddybear3k:
Exact, it's a new flash

---------- Post added at 09:30 PM ---------- Previous post was at 09:23 PM ----------

Clean install, open omniclock, select alarm clock, select the time, valid and force close.

Simple.

After some crash, the time is accepted and after no PB.

Ted
[OnePlus 3 & 3T Cross Device Development] maxwen:
But that still makes no senze :)

Only if you did this before media store has been loaded

Which could be the case that it takes some time after a clean flash though
[OnePlus 3 & 3T Cross Device Development] calvinistmac:
For what it's worth I had no issues with the clock at all. Works perfectly out of the box for me.
[OnePlus 3 & 3T Cross Device Development] Flamehell:
Love this rom!Speed and stability....what i was looking for...tnx a lot!:good:
[OnePlus 3 & 3T Cross Device Development] Nemuritor01:
Developer options also recognizes the codec.

Screenshots are, while listening to music.
[OnePlus 3 & 3T Cross Device Development] SH1M4BD3:
Heey, i'm used the same tuner app (EX-K) working as it should even when i set to 0 sec wait to apply som set.
[OnePlus 3 & 3T Cross Device Development] Nemuritor01:
I just change io scheduler and it does not stick. Can you check this?
[OnePlus 3 & 3T Cross Device Development] Siddk007:
This rom is awesome but following issues for me:

1. No VoLTE

2. Boot time is too long

3. Not able to enable developer options, everywhere i touch in about phone, the oreo game starts
[OnePlus 3 & 3T Cross Device Development] mady51:
2 - since u dont boot 100times a day. We can live with them as its still early stage.

3 - flash latest test build. It has dev options
[OnePlus 3 & 3T Cross Device Development] Siddk007:
the latest one is this right? (omni_oneplus3-ota-20171011)

I flashed this one
[OnePlus 3 & 3T Cross Device Development] marf28101995:
Search is your friend here ... And if you can't read last 5 pages in this thread just keep stock rom lol
[OnePlus 3 & 3T Cross Device Development] Siddk007:
thank you, found the 19th dated build. downloading
[OnePlus 3 & 3T Cross Device Development] Siddk007:
Can anyone confirm if ARISE Magnum opus works in latest oreo build. Stuck at bootanimation for a long time
[OnePlus 3 & 3T Cross Device Development] krish@3T:
OT

When did arise magnum opus supported Oreo ??*♂️

---------- Post added at 04:25 PM ---------- Previous post was at 04:23 PM ----------

What about the answer for 1 :silly:
[OnePlus 3 & 3T Cross Device Development] Siddk007:
ARISE Magnus Opus works perfectly in Oreo roms like GZOSP, Validus, LOS15.

No VOLTE for sure :(
[OnePlus 3 & 3T Cross Device Development] ssaikiran:
What are the best gapps for this build? Can I use latest opengapps aroma for 8.0?
[OnePlus 3 & 3T Cross Device Development] laupuy:
You can try.

I'm on stock open gapps from 19/10/17 and nothing to complain ;)
[OnePlus 3 & 3T Cross Device Development] ssaikiran:
Do you have Google dialer installed with stock gapps?
[OnePlus 3 & 3T Cross Device Development] laupuy:
Yes
[OnePlus 3 & 3T Cross Device Development] weigeloveu:
help help help

if anyone could upload the 1019 package to afh?

you must heard about gfw

my country blocked Google even XDA!!!!

and all my way to through out was blocked yesterday....
[OnePlus 3 & 3T Cross Device Development] webore:
contact me ,I can send a copy to you via QQ.

364298933
[OnePlus 3 & 3T Cross Device Development] weigeloveu:
Thanks no echo now.
[OnePlus 3 & 3T Cross Device Development] ghostspectrum:
I haven't had any issues with the ported camera on my end
[OnePlus 3 & 3T Cross Device Development] weigeloveu:
Found the reason.

It need gapp flashed.
[OnePlus 3 & 3T Cross Device Development] exb0:
how do I disable the annoying white background for icons ?
[OnePlus 3 & 3T Cross Device Development] weigeloveu:
I have deleted the folder,but google play service still keep fc.

---------- Post added at 09:03 AM ---------- Previous post was at 09:02 AM ----------

I use the 1020 opengapp.
[OnePlus 3 & 3T Cross Device Development] weigeloveu:
You mean that?
[OnePlus 3 & 3T Cross Device Development] buski:
is there a way to use flashlight?
[OnePlus 3 & 3T Cross Device Development] laupuy:
It works from quick tiles.

Try a reboot

---------- Post added at 10:19 AM ---------- Previous post was at 10:18 AM ----------

Try another icons pack

---------- Post added at 10:23 AM ---------- Previous post was at 10:19 AM ----------

Try another play services or upgrade to latest beta from apkmirror.com here https://www.apkmirror.com/apk/google-inc/google-play-services/ or at least wipe data from play services

Edit.

Did you flash gapps with rom without reboot between?

Maybe be try wipe cache, dalvik and system and flash rom+gapps (dirty flash).

I'm good with this method
[OnePlus 3 & 3T Cross Device Development] weigeloveu:
confirmed opengapp will fc.

i used the same way with you to fix the FC.

google play also need to replace.
[OnePlus 3 & 3T Cross Device Development] Air-真心为你:
How did you fix the black screen with white led issue ?
[OnePlus 3 & 3T Cross Device Development] weigeloveu:
don't uninstall app don't black screen.

i just flashed 1019 today, haven't tested if it was fixed.

ps: it will make quote reply failed because of your Chinese name.
[OnePlus 3 & 3T Cross Device Development] pijas82:
Clean, open beta 15 firmware, ROM, open gapps Pico, magisk ,boot and reboot, everything ok, bugs, no lags, great sot

Bugs:

No iOS animations

Trump stopped following me on Twitter
[OnePlus 3 & 3T Cross Device Development] weigeloveu:
[QUOTE=Air-真心为
[OnePlus 3 & 3T Cross Device Development] Bearthquake:
I know black screen white led can mean kernel panic, but that's I can contribute
[OnePlus 3 & 3T Cross Device Development] pijas82:
Sorry , another bug

drain... OMG drain
[OnePlus 3 & 3T Cross Device Development] pijas82:
5h sot and 50% free :confused:

My laptop feels sad.

:eek:
[OnePlus 3 & 3T Cross Device Development] ele95:
ambient display not working for me , any ideas , thanks for great build
[OnePlus 3 & 3T Cross Device Development] Xeon721:
Hello guys :) just wanted to ask a little question. What is the state of encryption right now? I tried to search, but no luck...
[OnePlus 3 & 3T Cross Device Development] Nburnes:
Mine says that as well but it's definitely not encrypted.
[OnePlus 3 & 3T Cross Device Development] marf28101995:
Some problem in your end

Mine says encrypted and it's encrypted
[OnePlus 3 & 3T Cross Device Development] Nburnes:
I didn't choose to encrypt so it's a non-issue for me. However I do find is strange it says that without actually being encrypted.
[OnePlus 3 & 3T Cross Device Development] Siddk007:
this bug is present in all oreo roms
[OnePlus 3 & 3T Cross Device Development] mbrian27:
In order to flash Omni O, my device needs to be decrypted, correct? Once it's decrypted, how long does it stay decrypted? I'm assuming until I would choose to go back to stock OOS?
[OnePlus 3 & 3T Cross Device Development] laupuy:
No need.

I was on OpenBeta 24, encrypt and Omni 8 works very well (better than OB Oreo as I read...).

Read some posts/pages back to make a good installation (ex. need to reboot once etc...)
[OnePlus 3 & 3T Cross Device Development] Droidcore:
*using caesium,

Only omni rom I feel comfortable ,

Battery life almost same with my daily usage pattern ( nougat ) ;)
[OnePlus 3 & 3T Cross Device Development] JagravNaik:
You have echo in phone calls?
[OnePlus 3 & 3T Cross Device Development] c0dac0da:
does magisk works with this rom?
[OnePlus 3 & 3T Cross Device Development] bambotcha:
Hello all,

Does this ROM have off screen gestures , also does it have button settings like locking screen when long pressing home button ?

Thanks
[OnePlus 3 & 3T Cross Device Development] krish@3T:
Yes

---------- Post added at 06:09 PM ---------- Previous post was at 06:08 PM ----------

Yes

Use button mapper
[OnePlus 3 & 3T Cross Device Development] lpsld:
Why is Spotify so yellowish?
[OnePlus 3 & 3T Cross Device Development] Nburnes:
Colored notifications. https://www.google.com/amp/s/www.androidcentral.com/android-oreo-colored-notifications?amp
[OnePlus 3 & 3T Cross Device Development] Sam Nakamura:
For button settings, it's under settings, omnigears, buttons along with 6 other options - no need for an additional application...

Didn't checked off screen gestures though as I don't use it :)
[OnePlus 3 & 3T Cross Device Development] Chaplan:
To clarify:

Home button- 6 options

Recents button - 2 options

Back button - not negotiable :angel:

Off screen gestures are pretty well configurable. Lots of options there.
[OnePlus 3 & 3T Cross Device Development] ghostspectrum:
Currently jumping between Oreo ROMs. Will likely flash Omni again tonight or tomorrow, coming from Validus. Both are great, stable and have great idle battery, but I'm noticing higher in-use consumption on Validus, so I'll be switching back to Omni again and gauge it :) great job!
[OnePlus 3 & 3T Cross Device Development] weigeloveu:
I found if don't uninstall app from launcher it won't panic.

if want uninstall app, you cant through other app like play store.
[OnePlus 3 & 3T Cross Device Development] Ziauddin_Sameer:
Best of all oreo roms till now.. :)
[OnePlus 3 & 3T Cross Device Development] weigeloveu:
deleted
[OnePlus 3 & 3T Cross Device Development] Sam Nakamura:
Yes exactly, I'm using titanium backup as a workaround to uninstall and all is just fine...
[OnePlus 3 & 3T Cross Device Development] dimon2242:
How can I fix it on latest Oreo?
[OnePlus 3 & 3T Cross Device Development] rob rich:
Wait a few weeks/months :)
[OnePlus 3 & 3T Cross Device Development] kungfury:
You just have to wait for an update, this ROM has SELinux set to permissive.
[OnePlus 3 & 3T Cross Device Development] elmkzgirxp:
You can't. The dev intentionally set SELinux to Permissive because of issues he's yet to fix.

So to recap, all current and previous builds will NOT pass SafetyNet.
[OnePlus 3 & 3T Cross Device Development] Sam Nakamura:
You can still try several things at least, maybe it's worth it, like switching on hide, hide play store app, install "universal saftynet fix" from magisk repo and if it still fails you can turn on "use core functions only" in magisk, I had it passing saftynet on ValidusOS 8/Cesium kernel with selinux permissive, didn't checked Omni 8, even though I used it the last days, now I restored my Nougat backup for work, so I cannot check myself...

Just to be sure it's not any other problem and that it is indeed technically impossible...
[OnePlus 3 & 3T Cross Device Development] weigeloveu:
force activities to be resizable option is partly worked.

on some app it doesn't work.

I googled this problem, it's a bug of all oreo rom.

if it possible be fixed by developer?

or must report it to google and waiting google fix it?
[OnePlus 3 & 3T Cross Device Development] dimon2242:
Thanks for universal safetynet fix, it's had fix cts error and Android pay is works!
[OnePlus 3 & 3T Cross Device Development] manishdev:
Nopes the version is perfect
[OnePlus 3 & 3T Cross Device Development] Nemuritor01:
Which Magsik Version are you running?

I've tried it with 14.3. when I flash the safetynet fix .zip magsik gets deinstalled completely.

Thanks in advance
[OnePlus 3 & 3T Cross Device Development] dimon2242:
14.0
[OnePlus 3 & 3T Cross Device Development] b3st34:
You can use Universal SafetyNet fix https://xdaforums.com/apps/magisk/xiaomi-safetynet-fix-t3600431

For me it works

OnePlus 3T a3010
[OnePlus 3 & 3T Cross Device Development] Nemuritor01:
I've flashed this version. Possible issue on my device. However, thanks guys and back to topic .... Omni-Rom:good:
[OnePlus 3 & 3T Cross Device Development] ri4dh:
Can someone confirm that Omni has burn-in protection? Can't seem to find a reference about it.
[OnePlus 3 & 3T Cross Device Development] datvui2211:
I'm getting "checking info" error in google play with the lasted nano opengapps, can somebody help me?
[OnePlus 3 & 3T Cross Device Development] weigeloveu:
google play service doesn't work, reinstall it

you can find the way from previous post
[OnePlus 3 & 3T Cross Device Development] Ziauddin_Sameer:
Gapps mini works good.. No issues..

---------- Post added at 08:06 AM ---------- Previous post was at 08:05 AM ----------

As far as i know non of these custom roms has burn in protection yet..
[OnePlus 3 & 3T Cross Device Development] laupuy:
Hi, [MENTION=4683552]maxwen[/MENTION]

Don't know if it's a Google translate or rom issue but There's a FC with this app.

Screen and log here

Thanks

Edit.

It works when I copy text and paste into main app.
[OnePlus 3 & 3T Cross Device Development] maxwen:
love it when people throwing trending buzzwords without any context around :D
[OnePlus 3 & 3T Cross Device Development] Bearthquake:
What's that? The pixel 2 XL is having burn-in issues!?!?!? Better make sure this non-existent issue is fixed on my phone!

I use cornerify, and even when disabled (after having been enabled for roughly 4 months) you can't see any colour or screen differences between the corners of the screen and the space beside.
[OnePlus 3 & 3T Cross Device Development] altojd:
I'm new to omni roms. i've clean installed today last omni 8 build and it seems that everything works great.

i just didn't find how to configure clock and battery icon (including showing battery percentage) in status bar. Am i blind or the rom doesn't have those features?
[OnePlus 3 & 3T Cross Device Development] webore:
You can set to show battery percentage ,but can't display percentage in the battery icon for now .

Clock position , hmmm,maxwen will never add that .:D
[OnePlus 3 & 3T Cross Device Development] laupuy:
Take a look at settings, battery :
[OnePlus 3 & 3T Cross Device Development] altojd:
Thanks i've already found it. :)
[OnePlus 3 & 3T Cross Device Development] Sam Nakamura:
Could be a theming issue, check without theming the apps that FC....
[OnePlus 3 & 3T Cross Device Development] laupuy:
Thanks, but nope.

I disabled theme for Google translate, reboot, try, and got a FC.

Not a big problem, as a copy /paste works but... Or maybe should I disable completely Substratum Theme and try again.

Don't know if it's only me or a known issue, but oreo just started so I'm not complaining :p

Thanks again ;)
[OnePlus 3 & 3T Cross Device Development] Shan8397:
Hi [MENTION=4683552]maxwen[/MENTION] will we see VoLTE support in coming update? Few other ROMs already have it but none are as stable currently as OMNI. I wish next update brings VoLTE support so that I can jump back to Oreo
[OnePlus 3 & 3T Cross Device Development] Siddk007:
+1

only thing thats stopping me from using this rom is lack of Volte which surprisingly other oreo roms are having
[OnePlus 3 & 3T Cross Device Development] deepongi:
Same talk about VoLTE all over again...?
[OnePlus 3 & 3T Cross Device Development] tbarrettjr:
Anyone noticed the on screen navigation buttons stay white and don't change to black when on a white screen? Makes it really hard to see...
[OnePlus 3 & 3T Cross Device Development] krish@3T:
Idk about you guys but I'm coming after few years may be at Android Q
[OnePlus 3 & 3T Cross Device Development] pijas82:
Fu#%. Volte .|.
[OnePlus 3 & 3T Cross Device Development] maxwen:
https://xdaforums.com/oneplus-3/one...ds/k-klock-customize-statusbar-clock-t3587100
[OnePlus 3 & 3T Cross Device Development] Chaplan:
OMNI 8 isn't supported yet by k-klock (v14).

One little thing, looking into adding a few more tiles to the QS header.

This used to be pretty straight forward on N ROMS editing "sysui_qqs_count".

OMNI even rearranged the Tiles on QSHeader automatically, based on DPI???, if memory doesn't trick me no command was needed.

Did you miss something while adding customization to Quick Settings and QS Header on O?

Running the mentioned command won't work for obvious reasons, not related to Oreo.

By the way, hope the user has the substratum folder on internal storage.

It will be needed after the black screen with white led k-klock gives on OMNI O builds. :cyclops:
[OnePlus 3 & 3T Cross Device Development] Mr.LOVER:
if you want encryption use magisk as a root app, supersu somehow breaks the encryption to my experience in many roms,
[OnePlus 3 & 3T Cross Device Development] weigeloveu:
is there anyone met the wifi down problem?

when i play game the wifi connection is not stable.
[OnePlus 3 & 3T Cross Device Development] dimon2242:
I see launch split screen without animation.
[OnePlus 3 & 3T Cross Device Development] Mtack:
I've tried out every Oreo rom I have found. None of them come anywhere close to the battery life I get from Omni 8.0.
[OnePlus 3 & 3T Cross Device Development] bambotcha:
[MENTION=4683552]maxwen[/MENTION] The ROM is truly great, sadly though the echo during calls still exists
[OnePlus 3 & 3T Cross Device Development] pijas82:
No echo for me in last build
[OnePlus 3 & 3T Cross Device Development] CroW_D:
For me either
[OnePlus 3 & 3T Cross Device Development] twoxa:
No echo here.

Also, better temperatures with Ceasium kernel here and no drain.

Best oreo rom so far.

PS. default launcher is pretty good, but we need to be able to change the grid. 4x4 only is not fun.
[OnePlus 3 & 3T Cross Device Development] Nburnes:
https://labs.xda-developers.com/store/app/ch.deletescape.lawnchair
[OnePlus 3 & 3T Cross Device Development] kungfury:
Battery life after one full cycle. No bugs yet. This is my daily driver now. Amazing ROM!
[OnePlus 3 & 3T Cross Device Development] Wilguens Joachin:
Theme?
[OnePlus 3 & 3T Cross Device Development] kungfury:
Swift black with lime accent
[OnePlus 3 & 3T Cross Device Development] Nemuritor01:
Did you use any wake blocking app?

Stock kernel?
[OnePlus 3 & 3T Cross Device Development] kungfury:
Stock kernel. No apps. I don't use Facebook, Snapchat etc
[OnePlus 3 & 3T Cross Device Development] bambotcha:
I see people reporting that Echo is fixed, but I am here with a clean install of the 19-10 build and every one I call tells me that they can hear themselves unless I use the loudspeaker

What have gone wrong at my side, can I debug this ?