i9100 sudden battery drain - Galaxy S II Q&A, Help & Troubleshooting

Hello there. I have a Galaxy S2 i9100 for almost 2 years now, and it's been working properly since until yesterday.
As I just bought a Galaxy S4, I am now using the i9100 with a voice-only SIM card (from work), so data connection is disabled (I have Juice Defender managing its wi-fi, since I only use it at home at night). During the day, every connection stays disconnected, with the phone only being used for some work calls. That way, the phone generally ends the day with over 70% battery.
But yesterday, all of a sudden, in the beginning of the evening it "cried" about having 15% battery. I found it quite weird, as I had barely used the phone the whole day long. Barely an hour after, when I got home, it had only 1% when I went to plug it on the charger.
It spent the night charging, and now this morning, after barely 1h20 on the battery without any real usage the phone was already at 89%, while the S4 was still at 99%.
I took some screenshots of the Android built-in battery usage page (which I forgot to look at yesterday), and I see compared to the S4, Android System is draining quite a lot (24% on the i9100 x 2% on the i9505). The same happens to Android OS (25% on the i9100 x 13% on the i9505). On the other hand, the standby is smaller on the i9100 (9% x 25% on the i9505).
I did absolutely nothing different with the phone yesterday. In fact, as it's Sunday and I do not receive phone calls on Sundays, I barely used it the whole day long, so I cannot understand why all of a sudden it began draining battery like this.
Any help on narrowing down the possibilities would be welcome.
Thanks!!!

If you're using the original battery that came with the phone/one you bought around that time, I'd be buying a new one.

Indeed I am using the original battery (although I have a replacement one, which I'll test tomorrow).
And even though you might be right on acquiring a new one, it doesn't explain why all of a sudden it had such a huge drop on performance from one day to the other (and not something that happened day after day).

Related

[Q] Mozart battery life

Hi!
How long does your Mozart work.
My settings: WiFi & BT are off / Exchange sync is permanent.
Around 30 mins calling time a day.
Battery is empty during the afternoon. It simply does not "survive the day" and has to be recharded. Is my device not ok, or do you have the same experience?
DrEAdler said:
Hi!
How long does your Mozart work.
My settings: WiFi & BT are off / Exchange sync is permanent.
Around 30 mins calling time a day.
Battery is empty during the afternoon. It simply does not "survive the day" and has to be recharded. Is my device not ok, or do you have the same experience?
Click to expand...
Click to collapse
Are you on telstra network perhaps?
I read something on the internet about a bug in the Exchange service, it reestablishes the connection every minute, so thats why you battery is empty so fast. (probably)
HTC is working on the problem. but if you are on a Telstra network there is a workaround http://blog.walshie.me/2010/11/15/htc-mozart-telstrabattery-issues-solved/
Hope this helps
I was not too pleased about the battery myself, but it was never as bad as what you're reporting!
I've always had Wifi turned on and use Exchange email... and have been continuously using the media player or an app or game now and then... and it lasts me a full day... There was once or twice when i had been continuously at it that it had 20% left by evening...
I posted about it on the forums too and someone said it'll automatically adjust itself... i was a bit skeptical, but today it still has 60% battery left and it is 12:15 AM now...! (though i did have Wifi turned off for the most part today)
Hello everyone
I have the htc mozart one month offered by the girlfriend. I used the mobile phone several times and even with wifi and bluetooth on and always lasted one day (24h) without problems. yesterday charged at 24h and at 15h had no battery. had not even turned on wifi or bluetooth. since then the battery does not last anything I do not know what happened but its not and nomal. Somebody now something about? This its really a joke but I know that the battery lasts well over
Spyaxman said:
Hello everyone
I have the htc mozart one month offered by the girlfriend. I used the mobile phone several times and even with wifi and bluetooth on and always lasted one day (24h) without problems. yesterday charged at 24h and at 15h had no battery. had not even turned on wifi or bluetooth. since then the battery does not last anything I do not know what happened but its not and nomal. Somebody now something about? This its really a joke but I know that the battery lasts well over
Click to expand...
Click to collapse
were you in an area with poor cell reception? if yes, that would affect the battery because the phone is constantly working to maintain a signal. i'm using an 1800 mAh battery from Mugen and it's easily lasting 32+ hours with 1 Push Exchange account, BT/Wifi off, 2 POP accounts (1 hour retrieval times) and about 40-80 minutes of calls when i'm in an area with a strong signal. i spent two weeks at a client site where i could barely get 1 Bar (and most often had "No Service) and the same battery would be depleted in about 18 hours. when working in an area with great cell reception, battery life is great for my use. on 2 occasions i forgot to charge the phone overnight and had about 15% battery left when i woke the next morning. in case you're wondering, i'm using the HTC TestTool - Battery Tool (v1.20.0.0) to determine battery percentage. you can find in in the WP7 forums.
I'm using the phone as I have always used but something happened that makes the battery last while. without stirring overnight stays with half in morning
i leave in portugal and use optimus
sotty bad english
Spyaxman said:
I'm using the phone as I have always used but something happened that makes the battery last while. without stirring overnight stays with half in morning
i leave in portugal and use optimus
sotty bad english
Click to expand...
Click to collapse
That the point you living in area where the cell phone reception is really bad!! It's same for me when I go to my Island in carraibe !!But where I living Paris and London I can keep the battry 100% at 7h in the morning till late in evening around 2h at 20%; Using all day Wifi, TV, Game... So the issue about battery is not the phone but carrier issue.
Because when I take a "Metro" or "Tube" where the reception are really bad my battery drainning fast....
For me it last for a day, since i don use 3g n wifi, i use followin settings.
3g turned off
wifi turned off
Always try to close the running apps using the back key.
everynite i switch my phone to low brightness, so that i don need much time in charging my phone in the morning b4 i leave to work.
with every settings turned on the battery last for 15-17 hours.
hope they fix the battery issue in the comming update.
With heavy usage 9-10 hours battery life for me.3g,4 e-mail account.One is push,the others checking every 15 minutes(almost getting 150 e-mails every day).1 hour talk time,Web browsing over 3G,listening music 30-45 mins,playing games 15 mins.(Brighness medium,location service all on)
using dark back grounds will help save power, but everyone nows that dont they.
Except it won't help with Mozart. It only works for AMOLED displays, Mozart has an LCD.
it has at least awesome standby time...
the red light once began to flash when i went to sleep.
when i got up around 9-10h later the phone was still on.
only bluetooth was off...
even more standby power, im back to report:
3+ DAY STANDBY!
i charged my phone friday 02-11-2011
untill today (tuesday) it still lasted,
same-time as last-charge 02-15-2011
thats incredible 4 days...
WLAN was OFF the most time
3G on
only did around 4-7 2min calls
didnt play much with it,
only quickly checking for news in market from time to time
had 2 reboots because of that
and did around 5 pictures.
i think its pretty awesome times...
yeah with heavy usage its only 1 day
but still its a phone and its standby is great
There's no surprise that the phone lasts long when you don't do anything with it.
As far as I can see, the battery annihilating combination is browsing the web via 3G. Guess IE was optimized for speed to impress with responsiveness. This probably won't change much until IE9 comes (which may or may not help). The power-hungry screens are a universal problem on all current HTC devices, with WP7 and Android equally, so this won't change.
The real killer is WI-FI, i upgraded to the MUGUN 1800MiH Battery, and im not looking back, it lasts way more than 50% longer than the standard battery did.
for £28 with free delivery, you'd be silly not to buy it.
also, as an aside, the Battery arrived within 4 days from HONGKONG, which is great because it advertised that the battery would have a 10 - 15 day shipping time.
Okay... what if
had 50% power left the night before...
after 6 hours sleep
phone is out of battery @@
Now that aint right, im guessing something is running under locked screen and iono what!!! but i always jump out of any program when im about to sleep too, so it cant be because of that
In the past, i could have standby time for a long period especially after one night. But the past two days when i woke up, it always ran out of battery!!
the first two days when i got my mozart it died on me due to low battery. but when i upgraded it to nodo(i think), the battery is longer now. but i will check some more.
my battery usually lasts 24 hours. But when I open htc weather, starts to pick up GPS signal if I leave soon have a very abnormal wear of the battery.
I tried with other Porgram gps and the same happens, the battery does not last 10h

Awesome battery life

I have a galaxy S and as you may know, the battery needs charged everyday though I have heard of some that the battery lasts for a few days (that's 3 days).
Anyway, my sis has got a Galaxy Ace and while she's been away I left the phone off charge and had a look in every day to see how the battery was doing. I did install a couple of apps on the 4th day so that's why the battery graph when down faster.
The firmware on the Galaxy Ace is v2.3.4, the latest beta installed with Odin, and I had to select the English language from some Eastern European language which was a bit perplexing.
Anyway, Wifi setting was off after screen off with Google Sync on.
The battery was in no wise empty when I took the screenshot.
Looking at the graph I was losing about 10% a day !!! so I reckon without using the phone at all, just in standby, you could get 8-10 days standby.
But what's a smartphone if it's to be left on standby?
My very old motorola basic phone could last 7 days with usage of messaging. I'd say that a phone has good battery life if it meets entertainment/connectivity demands and could still go on >2 days which few phones can...

Am I the only one impressed by the SGS2's battery life?

After reading through so many threads about owners having issues with the battery life, I thought I'd start a happy thread!
I've had my SGS2 for almost two weeks now and I've always been happy with the battery life because it seemed to last a while.
I'm not up to the stage where i can just leave the phone alone (because I always want to play with it!), but I did an experiment 3 nights in a row to see how much power the phone drains in standby mode.
Each night, I'd charge my phone up to 100% and take it off the charger and then wake up to see how much power is remaining.
I left all the settings as-is and DID NOT turn anything off (eg 3G, etc).
The first night, I didnt touch my phone from 11pm and woke up at 7am to see that there was 97% battery left.
The second night, I left the phone alone at 11:30pm and woke up at 8am with 96%.
The third night, I slept at midnight and woke up at 8am to have 97% left.
If I average it out, it means that the phone on standby drains a lot less than 1% per hour. At that rate, the bettary seems like it can go with minimal use for at least two or three days. But it's something that I haven't been able to test just yet because I'm constantly surfing the net, testing out apps, etc during the day.
Admittedly, I don't have all that much installed on the phone that could possibly drain battery:
Friend Caster
Kakao
Whatsapp
Crazy Colours Live Wallpaper
Seekdroid
Official EBay
Battery Solo Widget
"Standard" clock
"Applications Running" widget
(I've got more applications, but the ones listed above are the ones that might have some sort of network connection and/or widgets that may need to update during the night).
I'm also using stock Vodafone Australia firmware in Melbourne city (in Australia):
Baseband: I900TDUKF4
Kernel Version: 2.6.35.7-I9100TDUKF4-CL331615
Build Number: GINGERBREAD.DUKF4
Does anyone else get battery life like this?
I'm not sure how big a role the network plays in these stats because I'm based in the centre of a major city.
As much as I hate the Vodafone bloatware, I've been reluctant to flash other firmwares like I did on my previous HTC Aria/HTCHD2/HTCDiamond because this one works so well with the battery.
3% battery over night ?. I get under 10%, with all off what can be off, with no funky widgets, no data, no wifi, no nothing. Still phone wakes up in the night for unkown reason and 80% of battery is taken by mysterious Android OS process.
I had Optus bloatware and I kept it for a week or two. I wasn't unhappy with the battery life but wanted to customise it and get root.
After flashing Lite'ning it was obvious how much less battery drain there was. I have since moved to Cognition and I am very happy with how it's going. I charge nightly, but I've never had the battery drop below 50%, and I do use the phone quite a lot. I wouldn't say I'm a heavy user (it's all so subjective) but I would have to be at least medium if not more.
I also love the Black Theme by Nitrozk and Pele, which is why I moved from Lite'ning to Cognition to begin with.
Dr.Sid said:
3% battery over night ?. I get under 10%, with all off what can be off, with no funky widgets, no data, no wifi, no nothing. Still phone wakes up in the night for unkown reason and 80% of battery is taken by mysterious Android OS process.
Click to expand...
Click to collapse
That is a problem with the 2.3.3 firmware mate. Best switch to 2.3.4 ASAP!
To answer your question, yes, I'm hugely impressed by the battery life.
Here's my latest and I'm still at 15%. I'm bone stock on KF3 with all the syncs set to every three hours and using Exchange push.
People blame everything (Wi-Fi Sharing, AOS) for their issues except what they do to their individual phone. Network signal strength plays a big role so does the individual router used for Wi-Fi access. But outside of that there's no other explanation other than individual configuration when identical phone's from the factory get such different results.
I don't participate in battery threads because they're pointless. Dozens of different people using the phone differently with different apps and settings on different carriers all talk in circles when there's no common basis for a legitimate discussion.
I'd call 3% overnight something impressive.
I'll try it out tonight.
I'm running 2.3.3 (No updates avaliable here in Brazil) and i'm not about to root it now. I'm getting a generic 7" tablet to mess around and learn how to do it properly.
So i'll be running minimalistic UI, Snowstorm, Battery Monitor Widget Pro on the desktop, with 2 screens.
HSPA+, bluetooth and wifi disabled.
Let's see how it turns out tomorow morning.
One thing i wanted was to flash in Samsung's oficial fw for Brazil, mine's a carrier customized one, and that's sort of pissing me off since i wanted to uninstall 75% of the garbage Claro has installed here.
jwonga said:
That is a problem with the 2.3.3 firmware mate. Best switch to 2.3.4 ASAP!
Click to expand...
Click to collapse
I'm using 2.3.3 at the moment and don't seem to have this problem at all?
BarryH_GEG said:
I don't participate in battery threads because they're pointless. Dozens of different people using the phone differently with different apps and settings on different carriers all talk in circles when there's no common basis for a legitimate discussion.
Click to expand...
Click to collapse
I agree with you BarryH... having put the great battery stats in the first post, I wouldn't expect anywhere near that sort of level had I been playing with the phone or I had a thousand apps that run constantly in the background.
Having said that, it seems that there are the people who do have legitimate problems and then there are the people who simply have unrealistic expections of the battery in such a powerful phone. Kinda like buying a big truck expecting it to run on the same amount of fuel as a little car.
Unrealbr said:
I'd call 3% overnight something impressive.
I'll try it out tonight.
I'm running 2.3.3 (No updates avaliable here in Brazil) and i'm not about to root it now. I'm getting a generic 7" tablet to mess around and learn how to do it properly.
Click to expand...
Click to collapse
Let me know how you go Unreal... I saw on a thread a couple of weeks ago (not sure exactly which one now because there's so many of these "bad battery" threads) that someone had said that their phone lasted more than three days with minimal use.. and noone believed him! lol
How strange, I was about to make a similar thread. I had just gotten 3 and a half days out of my battery earlier tonight, no connection to charger since friday night. Minimal use of course, few phone calls and general tinkering, but still impressed with the standby. It was at 1% battery left so time to charge her up again. I charged my phone till the 100% alert came up, then charged it for another 45 minutes as I heard it stops it dropping immediately to 95% as some others have experienced. I've experienced similar too.
So after unplugging it, I pressed the power button to turn the screen off and haven't touched the phone till just now, about 6 and a half hours later. I pressed the power button and battery widget shows me 98% on the battery. If i was to leave the phone completely in standby and not use it, at about 1% drain per 3 and a quarter hours, that's about 13 and a half days standby!
I'm on 2.3.3 btw.
2-3% overnight drain is along the lines of what I get with KE2 and KF3. Data off, 2G. I get about 20-30% of drain a day, 30 mins usage, 30 mins talk.
I get great battery life on mine, although I have not made a valid experiment using quatitative data
Hopefully, this will be the NEW TREND for all the Android Gingerbread dual core phones.
Check this out!
Neo3D said:
Hopefully, this will be the NEW TREND for all the Android Gingerbread dual core phones.
Check this out!
Click to expand...
Click to collapse
We have one guy who went five days supposedly. The majority of posts in that thread are just like ours, a combination of moaning and pleased. It all comes down to how the phone is used and what's loaded on it.
Sent from my GT-I9100 using XDA Premium App
Im very happy with battery life. Froze a couple of apps and I was good to go.
First phone I've had that didn't need to.be flashed on a daily basis.
I think anyone that's needs more than a day from a single charge needs a blackberry or a home to charge daily.
Sent from my GT-I9100 using XDA App
I have owned a lot of androids and my sgs2 has the best battery life.
I guess you think it's ok, probably because coming from another android phone, it is.
For me is a pain, every half day have to think about charging, my whole usage of this phone although brilliant, has been taken over by thoughts of how I'm going to next get it charged aposed to what I want to do with my phone.
Something I didn't expect was just how much this phone discharges whilst playing music with the screen off.
Sent from my GT-I9100 using Tapatalk
Im not impressed, it just met my expectation coming from an SGS1, but the first one impressed me so ergo Im also impressed on the SGS2
I have had this phone since pretty much near release date. I have been and still am very impressed,by the battery life.
I'm currently on KG1 2.3.4, but since before this past Saturday I was always on 2.3.3 (KE2). Even on 2.3.3 with the AOS bug I was still very happy with battery life.
Now with KG2 out, I'm sure ill be even way more impressed.
I love this phone, and I have been a religous iphone user previously too!
Sent from my GT-I9100 using XDA Premium App
On my phone with 3500mAh battery. With yellow arrows, the behaivour during night.
KG1: during 4 days ( no drain at all)
KG2: during one night
I must agree, this is my 3rd Android phone (out of a total of 37 phones since 1990) and it's by far the best battery of any smart phone.
My best battery usage is 3 days 13 hours with 25% battery left. That was with wifi on all the time, over an hour of screen time (I was working at home, so no need to play with the phone) and over an hour of phone calls. I'm sure it would have reached 5 days. BTW, I'm running 5 pages of widgets, firefiles wallpaper and GMail is updating all the time.
During the 3 days time I switched off 3G as this is the biggest battery drainer I have seen. I live in a 40 floor tower which is made of thick concrete and the 3G signal in my home office is terrible, the phone is constantly hunting for 3G. When I'm at home, I don't need 3G as I'm using Wifi.

[Q] Question for S2 owners re: battery

Hello everyone,
A while ago (right at the launch of the S2, total coincidence) I made the transition from a "regular" cell phone to a so-called smartphone.
I took a look at the S2 and liked what I saw, but read absolutely horrible things about the battery (i.e. not being able to get through a day with it). To me, that's not an option as that means I can't rely on it and thereby defeats the purpose of a mobile phone for me.
So I looked elsewhere and got me a Motorla Defy (installed Cyanogenmod 7.1 on it). I'm happy with this phone as the battery usage is okay to me; during the week it easily lasts a whole day to 36 hours with plenty of room to spare (not going to claim a consistent 48 hours, but it could get there every now and then). It gets these easy 36 hours with the following usage pattern:
- Internet connection is always on (it switches automaticly between wifi and mobile internet depening on availability)
- a few widgets (stock quotes) are always on and refresh about once every 5 minutes
- e-mails refresh about every 5 or 10 minutes, not sure, I'd have to check
- usually facebook app is on as well in the background so I get notices when somebody sends me a message
- regular texting during the day
- a few calls every now and then, usually only a few minutes a day
- reading the news online with the browser, not constantly but checking every now and then
- general browser usage while looking for adresses or random info etc
- little to no gaming
A few days ago somebody told me that the battery problems with the S2 had lessened due to new Android updates and such. As my brother needs a new phone I was thinking on giving him mine and getting an S2 myself, if battery quality is any good.
So basicly, my questions:
1) can I expect the same battery durability of the S2 as from my Defy now that the problems are supposed to be fixed
2) can I also put Cyanogenmod on it (as I'm used to this and like it) without any battery problems
Any information or feedback in this regard is much appreciated, thank you.
Please use the Q&A Forum for questions Thanks
Moving to Q&A
No thoughts on this?
Battery use is very hard to gauge because the phone doesn't do exactly the same every day. In essence, estimates on battery life are like MPG ratings for cars: different styles and circumstances dictate usage.
Having said that, the less the screen is on, the greater the battery life, in general. If you are not happy with battery life, there is an official 2Ah battery which should yield around 20-30% extra usage.
I don't think SGS2 had any real big battery problems, or at least my set has never had big issues. Pretty much the same battery capacity since I first got mine and now with the newer firmware versions.
At the end of the end it all depends on how heavy you use your phone, how strong WIFI/3G/2G signals you obtain, running apps/widgets etc. Sure, the battery life is not great on SGS2 but it's also no worse than other mobiles with similar screen sizes.
I'm sure you can manage 24h with your usage, if not then you can always later buy the higher capacity battery which Samsung have released. It's slightly thicker but barely noticeable.
i got my s2 about a month ago with 2.3.3, battery was pretty poor at the start, wouldn't last a full day, but with some tweaking, i can now get roughly 2 and a half days use, albeit with light use. currently looking at my juice defender status in notifications, and says phone has been unplugged for 57 hours.
what i did/use.
2.3.5 stock firmware
juice defender ultimate
froze wifi sharing, ap mobile, social hub with Titanium Backup
screen brightness down to about 20%
turn off wifi when not needed
Basicly, what I'm wondering about is whether, given the use above, I could unplug my phone at 6am on friday to go to work, and only have to plug it in again at 8am on saturday with room to spare for any unforseen circumstances
Seems I finally found the question to which no answer can be found on the internet

Extreme Battery Drain after OneUI 2.1 / September Security update

Hello all, it's been a while since I've posted but this is quite a serious issue and could some guidance. A few weeks ago, I finally updated my Galaxy S9+ to Android 10 after being on 8.0 for so long and it's been a decent update so far. I had gripes with SoT not being the greatest but it was tolerable. Last night, I received an update for my phone and I installed it. Didn't think too much of it and continued on. I charged from my phone to ~87% today, used it lightly while working. By the end of my shift, I had 50% left.
I left the house to go for a 81 minute walk with 47%. I usually don't worry about having enough juice to make it back home but I experienced the worst battery drain I've had with this device so far. During my 90 min walk I:
listened to Spotify using my Galaxy Buds (one ended up dying towards the end because I forgot to charge them)
Checked Instagram occasionally and responded to some texts
Took 2 pics in Snapchat
Had a short video call on Messenger
It was right after the video call I noticed my battery was at 17%, which I thought was very strange. I don't leave apps running in the background for long and I have a habit of closing them out when not actively using them and I noticed the battery kept on draining despite there being no apps open besides Spotify.
Turned on the medium power saving and within a few minutes, I was at 5%. Decided to kill everything and pit my device on max power saving mode for the first time since I've owned the device. By the time I was home, my phone was at 1%.
I'm really baffled at how the battery drained at an exponential rate. I'm a medium user and I've had this phone since late 2018. Never leave location services on, never used AOD, and used the FHD display instead of QHD along with dark mode.
I'm hoping today was just an outlier as I want to keep this phone for another 2 years, but if this happens on a consistent basis I'm gonna have to start searching for a new device.
In the meantime, I have charged my phone to a 100% and disconnected the phone and observed the following:
Within 2 minutes of disconnecting, battery went from 100 - 98%. Not a good sign considering it was just idling
The battery continue to drain every other minute and I could see the battery go down on each unlock
Wiped the cache partition and I went from 93 to 94% for a brief moment prior to the phone going back to the same pattern
This is very worrisome to me as I don't believe the phone will last until midnight, I'm wondering if it's possible to roll back to the previous update.
TL;DR - After the update yesterday, the battery drained at an exponential rate despite light to medium usage
Also, here's some screenshots of my battery usage
http://imgur.com/a/lx5xXSY
I know this isn't the answer you are looking for, but all I can do is suggest changing the battery and doing a full, stock firmware flash via Odin to completely wipe your phone.
I recently replaced my phone's battery and did flash the firmware and my battery is really hanging in there. My battery was also 2 years old and before, I would get about 3h SOT when I play a game (and I do a lot). Now, I'm getting 5h SOT no problem with about 2-3h gaming included, so I really do suggest a battery change. I'm thinking you could be able to squeeze another 1 or 2 years into this amazing phone.
Battery replacement
ShaDisNX255 said:
I know this isn't the answer you are looking for, but all I can do is suggest changing the battery and doing a full, stock firmware flash via Odin to completely wipe your phone.
I recently replaced my phone's battery and did flash the firmware and my battery is really hanging in there. My battery was also 2 years old and before, I would get about 3h SOT when I play a game (and I do a lot). Now, I'm getting 5h SOT no problem with about 2-3h gaming included, so I really do suggest a battery change. I'm thinking you could be able to squeeze another 1 or 2 years into this amazing phone.
Click to expand...
Click to collapse
How hard was it to remove the battery? I bought one but unfortunately also a toolkit which seems to be only for iphone, what screw size has the s9+?
aaronanyaralu said:
How hard was it to remove the battery? I bought one but unfortunately also a toolkit which seems to be only for iphone, what screw size has the s9+?
Click to expand...
Click to collapse
Sorry, I had someone paid to do it lol I didn't trust myself.

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