JBL 4742 PDF


The JBL CX 12″ subwoofer is an awesome upgrade to your existing car speaker. With watts of peak power handling and a frequency response of. Hi All,i just signed up to give the site a try and also to search for information on JBL A/JBLA speaker bins.I would like to know who designed them and . Hi all,just joined as i hope it will help in my search for information and plans on the vintage JBLA/JBLA far i have only.

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Luckily, it has leaked. Pay online now or pay when you pick 442 in-store. PSTool will show an error, because the speaker powers down. Ask a question I’ve been using them for a couple of months, they worked fine and now i have a problem with touch pad, it doesnt respond to anything, i can’t even turn them on, what should i do? Check stock Tell us where you are to check stock: Reverse-engineering JBL flip 4 Back to project overview That is, full teardown, analysis, and hacking.

To download it officially, it jb like you have to buy csr development kit. For the latest info, you should check the product page.



We would like to work with you directly to help you with your issue. You may want to dump all settings to a file, to be able to revert any changes you made.

Argos logo — link to home page. If nothing helped – congrats, it’s probably bricked.

Sound Power Series

There should be no startup sound anymore. Unfortunately there is no way to activate the voice command from the touch controls. Down for 13 seconds or so.

Please submit a case request at https: Thank you for your question. May work jnl Wine, but I don’t know.

In-line with microphone controls. Power up your speaker. Compatible with universal smartphones. Modify “User configuration data 30”. However, it won’t help if the speaker is bricked, because then PSTool won’t connect to it anymore.

Instructions | Reverse-engineering JBL flip 4 |

With Speed Charge you can get an hour of listening time after charging the 8hr battery for just 10 minutes. To unbrick the speaker, you’ll need to use SPI programmer and you need to have firmware to flash. It should have a value like this: The devices I use my sprint with have voice control features i. Then try to switch it on.

As you launch PSTool, connection dialog pops up. Yes 0 No 0. Change the value “bfff” to “” in the piece ” a bfff”. Right earpiece volume fades to almost nothing during use.


This disables ONLY startup sound. I have played with this key quite a lot, and never managed to brick the speaker.

About Us Contact Hackaday. You should see a long list of keys you can modify. Charge it, power it on. How to disable startup sound.

JBL JBL Sound Power Serie Model 4742

Touch controls let you easily manage music. Add to Your Wishlist. Credit is subject to status. Sign up Already a member? Manufacturer’s 2 year guarantee. You can reflash it yourself, jbk it’s tricky. Spread the cost with an argos card Find out more. The responses from Argos colleagues are accurate at the time of publishing.

However, I’m not sure it’s completely fool-proof. IPX7 waterproof up to 1m. If steps don’t bring your speaker back alive, try: Same Day Delivery Order by 6pm. I’ve been using them for a couple of months, they worked fine and now i have a problem with touch pad, it doesnt respond to anything, i can’t even turn them on, what should i do?