EU volume limit cap removal

1 – first jailbreak
2 – For change the limit of volume, don’t use the app “volume boost” or other like this. The better solution, it’s change the file in system. Connect to iphone via SSH.
2.1 – Go to System/Library/PrivateFrameworks/Celestial.framework
2.2 – Take on your computer “ RegionalVolumeLimits.plist” and make a copie.
2.3 – Open the file with a soft like Plistedit pro (freeware)
on mac :
there is a same soft on windows, but i have not tried it.

2.4 – Change all value : 0.82999999999999996 to 1 (write 1,00000000000000000)
2.5 – save and replace on iphone the file
2.6 – Restart iphone, push the volume and it should work.

Old Values
Old Values
New Values
New values
Images and instructions courtesy of François, Thanks for the hard work.

10 Responses to EU volume limit cap removal

Fabian on May 5, 2011 at 11:20 am

i paid 3.99€ for this app and build the ir transmitter but it din´t work

i am from austria so i have the volume limit but i don´t want to jailbreak my iphone is there no chance that this works without jailbreaking?


Alberto on May 9, 2011 at 3:53 am
Hi Fabian, if you don’t want to jailbreak i suggest you try getting a small headphone amplifier that will boost the signal of your iPhone’s headphone. You can try a fiio amplifier which is small and inexpensive. I haven’t tried this so I’m unsure how effective it will be with a volume capped iphone.


Thomas on May 9, 2011 at 10:33 am
Hi, I buyed your software today, after building the transmitter.

After a jailbreak of my «old» 3GS, it works a bit. A bit means, I set the maximum volume and all setting right, and when i check it with a iMac iSight, it worked – so i tried with my 5D Mark II. It shots with a lot of interruptions. So I tried to accelerate the led light with a torch mirrow and it worked a little bit. But it shots only sometimes. I will find out to get an headphone amplifier. I will give you a feedback in a few days. Then maybe I can use the software with my iPhone 4 without jeailbreak.

Greetings from switzerland


Paul on May 11, 2011 at 7:33 am
I’ve just tested my DIY transmitter with my non-jailbroken EU phone. At full volume I can use it up to a distance of 10 feet (3m).

Using a friends jailbroken EU phone, with preferences set to 2, instead of 1 as described in this article, it can be used up to a distance of 12 feet.

Something to bear in mind if you are considering jailbreaking just for this purpose, like I was.


fabian on June 5, 2011 at 7:14 am
hey paul

where did you buy your ir leds for the transmitter and wich type (voltage)


Thomas on May 24, 2011 at 11:53 pm

Even after jailbreaking, it was not enough for constant shoots. Now I buyed an headphone amp (Ansmann Soundboost) for about 12 € and now with the jailbreaked iPhone 3GS, it works. With the unjailbreaked iPhone 4 it does not run. So an amplifier will help, but is not the optimal solution.

Regards tom


Fernando Marin on May 25, 2011 at 2:41 am
windows xp users?


Vrignaud on June 8, 2011 at 5:04 am
Can you tell me if this amplifier works with your system ?

Output power: 100 mW (16 ohms Loaded) 12 mW (300 ohms Loaded) Signal to Noise Ratio: ?98 dB (A Weight) Distortion: < 0.009% (10 mW) Frequency Response: 10 Hz – 80 KHz Suitable Headphone Impedance: 16 ohms – 300 ohms Power Supply: Use iPod / iPhone power 3.3V Dimensions: Line control: 48mmx14mmx10.7 mm AMP dock: 33.8mmx30.8mmx7.8mm Length: 800mm?Line Exposed? Weight: 20g Thank you REPLY Alberto on June 8, 2011 at 7:24 am Hi Vrignaud, I dont think that will work with my app as its not an amplifier that goes directly through the headphone jack. Something like this is probably better It probably will only give you a small boost though taking you up one or two volume bars, but not a significant difference. REPLY Luca on July 28, 2011 at 10:07 am I have an EU iPhone 4 (Italian), I admit I was skeptic about the IR transmitter but it works. My iphone is not jailbroken or modified in any way, I built 2 trnsmitters from IR led I salvaged from an old remote controller and an old wireless headphone transmitter both adapters are working perfectly with my EOS 60D. I was not able to test the max range but the camera fired corrctly in the 3m-ish range. Few suggestions I think you can find usefoul: 1. Connect the IR adapter and only then crank iPhone volume at max. 2. IR transmitter test, you can use any cameraphone (iphone 4 only front camera) or webcam to check if the IR LED is doing the job of emitting IR light. Take your tv remote control, aim it to your cameraphone, press a button and you’ll see what I mean. REPLY Leave a Reply Your email address will not be published. Required fields are marked * Name * Email * Website Follow albertoscanvas on Twitter App Store DSLR.Bot iPhone Application DIY Tutorials DIY Infrared Transmitter for iPhone Instructables Reviews 10k3d Serial Innovator, Director, Manager, CEO, Digital Curator & Coach. Adam Badge Photography blogspot Canon 5D Tips Your place for tips on how to make pictures and shoot video with your Canon 5DMrkII CheesyCam DIY Video and Photography Projects EOSHD Directed by DSLR Filmmakers Gatesman Photography Photography . Sill . Motion Scott Sanders Blog Sound On Sound Recording Techniques, Audio Technology, Music Production, Computer Music, Video Media The iPhone Guru The Next Web TNW is the International Source for Internet News, Business and Culture. The Tech Zone LIve Technology enthusiast, and freelance graphics designer from Montreal. DSLR Community 48 Green Hours Short Film Festival Canon 5D Tips your place for tips on how to take pictures and shoot video with your Canon 5DMrkII Cinema 5D The Forum for DSLR Filmmakers DP Review Digital Photography Review DSLR Film DSLR Video & Movie Blog DslrFlix The best in Dslr cinema from around the net DVX User The Online Community for Filmmaking No Film School The DSLR Cinematography Guide Planet 5D Canon HDSLR News T2iVideo Your source for everything Canon T2i Photographers Belinda Dipalo This is triangles. I need it to be more squares, and then some circles.. John Kitching Landscape Photography Zhang Jingna Fashion Photography Film Makers Philip Bloom Blog Shane Hurlbut Blog Stu Maschwitz Blog Vincent Laforet Blog Personal Arist Blog WordPress Art of Alberto Santiago Traditional Oil Painting Studio Canvas Animation and VFX Production House Twitter albertoscanvas Shopping Cart Your shopping cart is empty Visit the shop Gallery Projekta Uluru TVC Uluru (Ayres Rock) TVC by Projekta DSLRBot Remote Package DSLR.Bot IR + Remote Button DIY IR Transmitter | Finished Product Scott Sanders – DIY IR Transmitter Venice_1_tonemapped-crop Gatesman Photography – Venice HDR Imges CheesyCam_Review CheesyCam – Review Copyright © 2011 DSLR.BOT. All Rights Reserved. Magazine Premium created by Themes by to Top Blog WebMastered by All in One Webmaster.