yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Watch] tb_:
I think this makes sense. The tpks are from a bigger watch. Do we have any chance to extract the tpk from the Korean 820 model?
[Samsung Galaxy Watch] Mx772:
It's kinda strange though as other Active2 users have had success installing it.

Not sure how/where to find my csc.img to extract the widget sizing. But I can grab that xml if I knew how for my US-Active2

It's also somewhat strange as multiple people have mentioned it's only working on samsung phones, however there has been successes on non-samsung phones as per Reddit and a few other comments.
[Samsung Galaxy Watch] ruiffs:
Well, I'm from Portugal and have an Active 2, I updated to 4.0.0.8, changed the location and installed the applications on the watch. It turns out that I have problems with the mobile phone, first the SHM gave root indication then I got the version of post 155 here but it started to give an indication of location error. Couldn't they find a version where they could solve the root and location problem? I take this opportunity to thank everyone for all their help.
[Samsung Galaxy Watch] amitdon:
even i have tried on 825f ...it cannot be changed to 825u...as what I think because of Ap mode during the wifi mode ...shows 825f...after loading combination firmware....

Dont use KOO as a CSC for Korea in LTE model CSC is SKC The string which need to match from the current firmware then only it will accept ...and then firmware is not available on easyfirmware...refer image below.

Hence pls hold for the update and here everyone talk about BT version only LTE ...no one interested. ...
[Samsung Galaxy Watch] mollotok29:
ok thanks amitdon. i will try and keep you informed
[Samsung Galaxy Watch] wrasor7:
I am using SDB version 2.2.60 and my commands are different. It is asking for the package ID which is an 8 digit code for the TPK. I am trying to remove the old bp.tpk app and not able to do it yet. Looking for any help on the commands. Thank you
[Samsung Galaxy Watch] Teakay04:
Uninstall

You have to use the sdb from tizen studio to uninstall the tpk. (it's 4.x.x or something. Not at the pc right now).

Command that worked for me is:

sdb - s 1 uninstall com.samsung.health.samd.bp

for the BP app or change the bp for ecg in order to uninstall the ecg app if installed separately.
[Samsung Galaxy Watch] mitas35:
Ask [MENTION=1030585]adfree[/MENTION] he knows the command i found an old post from him and it did the trick,or reset the watch
[Samsung Galaxy Watch] wrasor:
Will try it. Thank you
[Samsung Galaxy Watch] gamersekofy:
I've been experiencing battery drain on my Active2 lately. Instead of getting 2 days on a single charge, I'm now getting just over 24 hours (usually 1 day 2 hours). This is a very early diagnosis, but I think Samsung Health Monitor is causing the battery drain.

Is anyone with an SM-R820 on Tizen 4.0.0.8 with SHM installed facing battery drain issues?
[Samsung Galaxy Watch] adfree:
[MENTION=1017159]tb_[/MENTION]
[MENTION=5497485]Mx772[/MENTION]

I have only BTF3 as latest Firmware...

All newer like BTG1 or GW3 cra ehm Firmware not available as files...

Extracted from csc.img.. with 7Zip

Korean CSC is the 1 and only "enabled" CSC by Samsung... :rolleyes:

Attached files from XAR and KOO preconfig crap...

IMHO set active CSC to KOO maybe not create these kind of self uninstalling "phenomenon"...

Maybe creates other problems/sideeffects... :rolleyes: :rolleyes:

My suggestion is to learn how to self sign...

Or I could offer to Root SM-R820 Firmware for tests... :angel:

With Self Signing I mean this:

https://xdaforums.com/smartwatch/gear-fit/howto-sign-sideload-tizen-applications-t3639793

Without my Root method it require OWN device specific Cert...

Long way with Tizen Studio etc... and only usable on your own device...

With my Root method...

We could use Samsung Certs like in Combination Firmware... :angel:

But need Tester for Root in SM-R820... SM-R830...

Best Regards
[Samsung Galaxy Watch] adfree:
https://www.youtube.com/watch?v=M8lqvVvDkns

Best Video today. :good: :cool:

Because I see FIRST time since dayS nearly full Video about ECG trouble...

If ECG not perfect work or not work at all...

Thanx for this Video. :good: :cool:

Later more...

Best Regards
[Samsung Galaxy Watch] GetDiz:
Finally managed to install.

But as i open the SMH (newest one)

It says can't be opened since my phone is rooted.

Anyway i can bypass this?

Magisk hide is enabled.
[Samsung Galaxy Watch] Eisik:
To anyone experiencing the ECG not measuring issue, you'll have to change the sensors out.

Due to inactivity, the watches sensor(s) are with a very high chance broken.

There isn't any number for the broken devices.

It could be 20% it could be 50% or even more.

With the help of few users we can see:

Most of the users have ECG sensor version 0.400

This sensor is also included in the newest Watch Active2 models (Watch from June of this year, shows also 0.4) while few people have 0.500.

There isn't really a timeline for broken devices, like not a special manufacturing date, which has broken sensors.

So if it functions or not, is a game of luck...
[Samsung Galaxy Watch] dp68:
Thanks a lot man!

Your hints worked for me!!!

I'm in Italy and I've an SM-R300 with BTF3 fw - XAR region (changed as by TechnoProz YT tutorial) and Tizen 4.0.0.8.

I've tried many ways to get bp and ecg working, but no way till your definitive post :D

Concerning ecg measurement issues, as my observations, in my case it's a question of sensor position relative to the wrist skin: I noted that ecg works fine if I slightly lift the bottom left side with my thumb while I place my index finger on the key at the top right (I wear watch on the left arm).

Hope my post could help someone else here ;)
[Samsung Galaxy Watch] farzad babazadeh:
Hello dear [MENTION=1030585]adfree[/MENTION] thx for helping me on in working ecg

I'm see all your post and all your wants I'm doing and it's not work ecg ithink Iits for sensor...

I'm see latest video I'm so likely on video doing that but never can I'm measure ecg never and I'm sold my active 2

Just I'm waiting for buy titanium galaxy watch 3
[Samsung Galaxy Watch] paul92:
Hello! I have a SM-R830 (French model) with R830XXU1BTA1/R30OXA1BTA1/ firmware and Tizen 4.0.0.7. I have BP working. Is there anyway to get ECG working?

I have a Note 10+ 5G.

Thanks!
[Samsung Galaxy Watch] Mx772:
Took a stab at self-signing. Getting this:

__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.health.samd.bp] key[start] val[install]

__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.health.samd.bp] key[install_percent] val[9]

__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.health.samd.bp] key[install_percent] val[12]

__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.health.samd.bp] key[install_percent] val[15]

__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.health.samd.bp] key[install_percent] val[18]

__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.health.samd.bp] key[install_percent] val[21]

__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.health.samd.bp] key[install_percent] val[25]

__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.health.samd.bp] key[error] val[-14] error message: :Check tizen-manifest.xml| - Current api-version = 4.0.0.8, | certificate signature level = partner||[MISMATCHED_PRIVILEGE_LEVEL]| - http://tizen.org/privilege/packagemanager.admin| >> Use at least platform signatured certificate.||:<-7>

__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.health.samd.bp] key[end] val[fail]

processing result : Signature error [-14] failed

Using the 23.tpk
[Samsung Galaxy Watch] dp68:
I had the same starting point... french galaxy active 2 model (R830).

Based on my attempts, only way to get works bp and ecg both is to obtain Tizen 4.0.0.8 changing region to USA (XAR) then install bp.tpk and ecg.tpk via sdb 2260

https://www.youtube.com/watch?v=EyaGf31T6Xc

https://www.youtube.com/watch?v=-YZbI7DmRCU

Apps working for me are those posted by noraja https://xdaforums.com/showpost.php?p=83275421&postcount=1590.

;)
[Samsung Galaxy Watch] paul92:
Thanks, I tried to pm you but did not success. Where did you find the firmware file for R830? Thanks!
[Samsung Galaxy Watch] dp68:
Here:

https://xdaforums.com/smartwatch/galaxy-watch/changing-region-galaxy-active-2-t3983895
[Samsung Galaxy Watch] adfree:
https://wiki.tizen.org/Security/Tizen_3.X_Privileges

http://tizen.org/privilege/packagemanager.admin	[COLOR="Red"][B]Platform[/B][/COLOR]
Installing/uninstalling application packages
[COLOR="Red"][B]This application can install and uninstall application packages. [/B][/COLOR]

[MENTION=5497485]Mx772[/MENTION]

If not help...

PM me.

Best Regards
[Samsung Galaxy Watch] Mx772:
Thanks for all the help. Was eventually able to install. Let me document my steps for others who are having the issue where either:

- Instant uninstall (Icon appears then disappears)

1) Grab one of the most up to date tpks for ECG/BP - I personally used these: https://drive.google.com/drive/folders/1V8iAMoLl8WTuKaPRICiKaw54XWIGt4f_

2) Grab the modded SHM: https://drive.google.com/file/d/1GKG6cDLFNcDrxgeZarjwt6yRf5axJYz6/view?usp=sharing (https://xdaforums.com/smartwatch/galaxy-watch/ecg-bp-gwa2-t4051141/post83228613#post83228613) & install

3) On your 23.tpk, use 7zip/etc to open the archive and open 'tizen-manifest.zml' - In this file, remove the line "<privilege>http://tizen.org/privilege/packagemanager.admin</privilege>" - and save

4) Download Tizen Studio + IDE and Generate a certificate as per https://xdaforums.com/smartwatch/gear-fit/howto-sign-sideload-tizen-applications-t3639793

5) Using the certificate from step 4, sign the new 23.tpk following the steps in step 4 in the bottom of the post.

6) Using the 'install.bat' file from the Fit2Installer push to your device and it should appear.

7) Profit.

Many thanks to [MENTION=1030585]adfree[/MENTION] - couldn't have done it without you!

Edit: The only thing that may be a problem now is it's not really picking up a heartbeat super well. Sometimes I put my finger on and it's not even sure there is one there? Not sure if something to do with tightness of watch or what. But definitely doesn't change if I raise heart rate. Still very flat-lined:

https://i.imgur.com/u2Al4fu.png
[Samsung Galaxy Watch] safsaf43:
Could you please attach photos for what you do exactly ??
[Samsung Galaxy Watch] ruiffs:
this version (page 153, # 1526) solved the root problem but gives location error ... can someone change the apk to solve this? For Watch active 2, in the watch I already changed and installed everything. Thank you
[Samsung Galaxy Watch] gamersekofy:
My watch can take ECGs without any problems, but sometimes I get the bug where the ECG goes all crazy. Is this a hardware or software issue?
[Samsung Galaxy Watch] Eisik:
It's probably Software.

On the broken ones it won't take more than 5 seconds for it to stop measuring.
[Samsung Galaxy Watch] dupel:
Well, did everything correctly, but turns out I'm one of those with 5 second limit. **** my life. Rm830, boung just as soon as it came out.
[Samsung Galaxy Watch] benther:
I'll tell you my tests.

I have an r820, with btf3 and tizen 4.0.0.8. I've been testing with the 23.tpk and it has always failed me at 5 seconds. It has never done a correct ECG.

After that, I decided to try the previous ECG.tpk and in principle the results seemed the same, it failed after 5 seconds.

But I have discovered that after putting it in the charger for a few seconds, it seems that it is able to perform correct ECGs ... Then it would fail again, I would put it back on the charger, and the ecg would work again.

I'm beginning to suspect that by putting it on the charger, the vibration that is produced improves the ECG somewhat.

At least that has been my experience...

I hope this can give you clues about the problem.

Regards
[Samsung Galaxy Watch] dp68:
I mean this:

https://drive.google.com/file/d/1GopC2ePvuwsSjR3a1GllDYm4i0LTx7RR/view?usp=sharing
[Samsung Galaxy Watch] Compusmurf:
Which version.....

This was posted earlier:

"UPDATE 10.06.2020: Version 165 from [MENTION=1030585]adfree[/MENTION] and modded by [MENTION=2998712]caravana[/MENTION], with this version you can update WITHOUT deinstalling old one and without make calibration again. Try it and let me know. Download from here: AbsolutelyOWNRISK-APK-165

UPDATE 07.06.2020: New APK again (version 161). Always thanks to [MENTION=1030585]adfree[/MENTION] and [MENTION=2998712]caravana[/MENTION]. Download from here: AbsolutelyOWNRISK-APK-161

UPDATE 30.05.2020: New APK (version 159). Thanks to [MENTION=1030585]adfree[/MENTION] and [MENTION=2998712]caravana[/MENTION]. Download from here: AbsolutelyOWNRISK-APK-159

UPDATE 17.05.2020: I updated the APK with version 157 (thanks [MENTION=2998712]caravana[/MENTION]) because the old one gave a false-positive with MalwareBytes app (RUBBISH)."

The one I have installed, 1.1.0.159.Caravana (Mod 2) is the version I have and it works with GW3 for both BP and ECG.

Does 161 or 165 work with both BP and ECG? Do either of them actually sync bp to Samsung Health?

I hate to go experimenting and break what already works if someone else has already tested this. :)
[Samsung Galaxy Watch] adfree:
[MENTION=2469440]benther[/MENTION]

Sounds interesting...

A

Is it possible to use ECG in Charger?

Sorry for stupid question but you maybe remember I have only SM-R500 and SM-R760 and both have NO ECG Hardware...

B

Maybe Flightmode ON

Or WiFi OFF

OR BT and WiFI OFF

AOD OFF

No idea Battery Safemode blabla...

About Charging...

IMHO it produce heat...

IMHO your Watch is now warm or hot... but hotter as before...

Best Regards
[Samsung Galaxy Watch] benther:
ECG cannot be used in charger. I just put it on the charger for a second and then put it on my wrist.

I think it's more due to the vibration than the heat ... In fact I have been able to reproduce the effect, just activating the vibration on the watch.

That is, the ECG is failing. Make the watch vibrate and work properly again for a while.

With the 23.tpk it never run ok, although I had not tried this method. With the old tpk at least I am able to make it work sometime.

Regards
[Samsung Galaxy Watch] paul92:
Hello!

I succeed to change region on my R830, following this https://xdaforums.com/smartwatch/galaxy-watch/changing-region-galaxy-active-2-t3983895

Now I have three issues:

1) I can't update Tizen. I'm on Tizen 4.0.0.7 and when I update from my phone it seems to install but then the same update is still avaible, again and again.

2) I can't follow the steps to install 23.tpk since sdb connect answers : "error: failed to connect to remote target '192.16.1.30'" (even if developper and debugging mode are activated, same wifi (tried from home wifi and from phone AP, I rebooted...)

3) Samsung Pay says me phone has been modified.

Thanks for help!
[Samsung Galaxy Watch] Stephan905:
Sometimes I do get a reading on mine for 5 seconds. Is this because I have 4.0.07? I am trying to update, I live in the US but samsung has yet to update the under armour Edition
[Samsung Galaxy Watch] Eisik:
It is a must to have 4.0.0.8.

.7 has something that's blocking ECG.

You'll have to wait.
[Samsung Galaxy Watch] Nima79:
Galaxy watch 3 get ECG officially in USA.

"Androidpolice"
[Samsung Galaxy Watch] adfree:
:confused:

Where when?

:confused:

Link please.

I know only about in future rumour...

Best Regards
[Samsung Galaxy Watch] adfree:
https://www.file-upload.net/download-14228262/crapcraponlycrap.7z.html

For own study.

Samsung Health... with Oxygen...

Tizen 5.5.0.1

No support from me... only for study. ;)

Best Regards
[Samsung Galaxy Watch] yassine772001:
Thanks a lot bro

It works very well for me thanks a lot brother

---------- Post added at 07:28 PM ---------- Previous post was at 07:16 PM ----------

Thanks a lot brother it work very fine
[Samsung Galaxy Watch] Tux21:
crap from 5.5.0.1

Can someone transform the .wgt-file to .tpk ?
[Samsung Galaxy Watch] adfree:
[MENTION=11028321]Tux21[/MENTION]

You ever heard about filename + fileextension?

You know what ZIP archive is?

And you are able to rename file(s)?

:confused:

Best Regards
[Samsung Galaxy Watch] user860:
Retail apk works fine on german galaxy watch 3 lte )SM-R845F, tizen 5.5.01). ECG works, BP works correct. Uninstall retail.apk with bt disabled is also fine.

Samsung health (galaxy store version 6.11.061) syncs ecg an oxygen with the galaxy store version 6.11.061.

Bp syncs with samsung health monitor on phone but not with samsung health. SHM phone app shm 1.1.059.Caravana.

Good work.
[Samsung Galaxy Watch] raj_1985:
Just for study tried installing on GWactive 2 4.0.0.7

C:\Users\user\Downloads\sdb2260-20200618T081348Z-001\sdb2260\sdb\data\tools>sdb install samsungapps-000002143337-32185748-401002600.wgt

* The version of SDB client (2.2.60) is not same with that of SDB server (4.2.12).

It may cause version compatibility problems.

It is recommended to use SDB server with version 2.2.60. *

* The version of SDB client (2.2.60) is not same with that of SDB server (4.2.12).

It may cause version compatibility problems.

It is recommended to use SDB server with version 2.2.60. *

pulled samsungapps-000002143337-32185748-401002600.wgt 100% 30MB

1 file(s) pulled. 0 file(s) skipped.

samsungapps-000002143337-32185748-401002600.wgt 2485 KB/s (32185748 bytes in 12.644s)

* The version of SDB client (2.2.60) is not same with that of SDB server (4.2.12).

It may cause version compatibility problems.

It is recommended to use SDB server with version 2.2.60. *

path is /opt/usr/home/owner/apps_rw/tmp/samsungapps-000002143337-32185748-401002600.wgt

__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.shealth_gear] key[start] val[update]

__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.shealth_gear] key[install_percent] val[8]

__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.shealth_gear] key[install_percent] val[10]

__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.shealth_gear] key[install_percent] val[13]

__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.shealth_gear] key[install_percent] val[16]

__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.shealth_gear] key[error] val[-4]

__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.shealth_gear] key[end] val[fail]

processing result : Operation not allowed [-4] failed

spend time for pkgcmd is [9575]ms

* The version of SDB client (2.2.60) is not same with that of SDB server (4.2.12).

It may cause version compatibility problems.

It is recommended to use SDB server with version 2.2.60. *

rm: remove write-protected regular file `/opt/usr/home/owner/apps_rw/tmp/samsungapps-000002143337-32185748-401002600.wgt'?
[Samsung Galaxy Watch] adfree:
path is /opt/usr/home/owner/apps_rw/tmp/samsungapps-000002143337-32185748-401002600.wgt
__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.shealth_gear] key[start] val[update]
__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.shealth_gear] key[install_percent] val[8]
__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.shealth_gear] key[install_percent] val[10]
__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.shealth_gear] key[install_percent] val[13]
__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.shealth_gear] key[install_percent] val[16]
__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.shealth_gear] key[error] val[-4]
__return_cb req_id[1] pkg_type[tpk] pkgid[com.samsung.shealth_gear] key[end] val[fail]
processing result : [COLOR="Red"][B]Operation not allowed [-4] failed[/B][/COLOR]
spend time for pkgcmd is [9575]ms

Only Sam...g knows why no additional info here...

-4 seems for Tizen API in TPK higher as Firmware Tizen 4.0.0.7

So if we count from 1 2 3 4 5

4 comes before 5 :D

If I remember correct this is Samsung Health Version:

4.10.2600

The question is...

Is API Version really really mandatory to be 5.5.0.1...

:confused:

At the moment I am toooooooooooooooooooooooooooo lazy to check this...

Because not really easy to replace Shealth with other Certs... and remove from &%ing SQLite Database...

Because preinstalled... :rolleyes:

Best Regards
[Samsung Galaxy Watch] Eisik:
[MENTION=1030585]adfree[/MENTION] with root can't you uninstall it?
[Samsung Galaxy Watch] amitdon:
The version show this ....on galaxy store
[Samsung Galaxy Watch] r4961:
Question for Galaxy Watch 3 "newcomers."

1) Can the same installation procedures listed for the SM-R840 be followed by owners of the LTE version (SM-R845U)??

2) With ECG monitoring already being approved locally,...is there a clear pathway towards simply adding the BP tpk to what should already be packed into the latest/coming update? Is it as simple as installing an apk to an android device, or is there more at play?

Thanks in advance for any insight provided that are kind of lost on the "yes, but no" situation with this watch's listed specs.
[Samsung Galaxy Watch] amitdon:
Just installed latest Samsung Health ...by VPN for south korea....and update the apk file ...
[Samsung Galaxy Watch] aygz:
Does this version sync with Samsung Healt Monitor?
[Samsung Galaxy Watch] Tux21:
New SHealth from 5.5.0.1

Does the new SHealth from Tizen 5.5.0.1 work with Tizen 4.0.0.7 or 4.0.0.8 with GWA2 LTE ?
[Samsung Galaxy Watch] amitdon:
No it don't get installed as you have samsung health in watch...overwrite don't happen

---------- Post added at 11:56 AM ---------- Previous post was at 11:56 AM ----------

No ...sync .....happens with SHM
[Samsung Galaxy Watch] Tux21:
SHealth from 5.5.0.1

This is what I feared... SHealth on watch is preinstalled and cannot be removed...no possibility to overwrite it with sdb method...:crying:
[Samsung Galaxy Watch] Eluryh:
You guys still think GWA2 will receive tizen 5.5 later this year/early 2021 or not?

When GWA2 was released on August 2019 with OneUi 1.5 and features like new bixby, etc. this features and software version arrived to previous Galaxy Watches on mid-November 2019.

So, you guys expect can happen something similar and give the tizen 5.5 exclusivity for watch3 during this inital three months, and then update to tizen 5.5 GWA2 and more?
[Samsung Galaxy Watch] govenderryan@gmail.com:
[MENTION=1030585]adfree[/MENTION] apologies for the stupid question, but do you think that the GWA2 can support Sp02 measurement by software or does it require a specific hardware sensor, according to my research only devices with a RED LED could work because of the amount of light absorbed by red blood cells with sufficient oxygen vs that without sufficient oxygen. However The GW3 has a green LED and the same sensor array as the GWA2 and can do Sp02 measurements, so the GWA2 should in theory have the hardware to measure Sp02 right?
[Samsung Galaxy Watch] Blenky:
How did you do that? I can set my VPN to South Korea but how do I get latest version that you have?
[Samsung Galaxy Watch] leguyanais:
I also updated Samsung Health through my VPN in Korea. You have to go through the Galaxy Store to update.View attachment 5080685

Envoyé de mon SM-G955F en utilisant Tapatalk
[Samsung Galaxy Watch] sprcreative:
Got it working, if the app disappears, get on of the oldest bp.tpk you can find, if that one doesn't dissapear, install ecg.tpk.

If the app says region is not supported, install older app, fill in your details and then install latest modded apk => should bypass the region check.

For ECG, how does this work? I need to make my finger wet (app suggested that), have the watch very tight and only push the back putton quite firmly (but not touch the watch any other way), then with a bit of luck i get a reading. If it quits after 5 secs its just because the reading is way to bad.

So the back button functions as a sensor? Or it sends an electric current to my body to compare?

edit: Just tested it with making both the skin under the watch as the finger wet => seems to work way better so im suspecting this thing works trough electric current?

edit2: Just got an ecg reading with my fingers instead of my wrist, the back has 2 metal parts that must make contact, the back button must be touched by by the other arm. It functions as a single wave ECG