Community : Document List - JM4 Looper

JM4 2.09 Update Instructions

support@line6.com — Mon, 23 Mar 2009 16:39:16 GMT

Firmware v2.09 Release Notes:

* Eliminated slight delay when entering Record mode.

* Fixed problem with extended-ascii characters in file names.

* Fixed Undo issue for recordings loaded directly from SD-Card, where the last two overdubs would be erased instead of only the most recent one.

JM4 Advanced Guide:

For in-depth info on features and functionality of the JM4 Looper not included in the Pilot's Handbook, check out:

JM4 Looper Advanced Guide

WARNING: BACK UP YOUR FILES!

The v2.09 update will erase all the internal recordings you have made. If you want to save them, use an SD card to create backups (via the TRANSFER ALL TO CARD command) then copy them from your SD card onto your PC for safe keeping (using an SD card reader). You can then reload your files using an SD card at any time after you have completed the update.

The v2.09 update will erase all the custom guitar presets you have made. Record a short .wav file of each customized preset and the guitar preset will be saved as well. Use an SD card to create backups (via the TRANSFER ALL TO CARD command) then copy them from your SD card onto your PC for safe keeping (using an SD card reader). You can then reload your files using an SD card at any time after you have completed the update.

Instructions for updating (also attached):

1. If you haven't done so already, download the latest firmware to your computer desktop from the Line 6 website (log in with your Line 6 User Name), by going to the following link:

JM4 Looper 2.09 firmware

The downloaded file will be named "fw.bin", with no number. Please save this to your desktop to easily find the file once the file has been downloaded.

Note: You will need to delete any previous JM4 Looper updates from your desktop prior to saving the JM4 Looper 2.09 firmware, as the device will not recognize any firmware with an extension or name alterations.

2. Copy the downloaded fw.bin file to a blank SD card via an SD card reader. When the copy is complete, put the downloaded fw.bin file in a safe place on your PC for future reference -- for example, put it in a new folder labeled 'JM4 Looper Flash', noting the version #.

3. Insert your SD card into the JM4 Looper SD card slot.

4. Press the SAVE button to display the menu items in the LCD if they aren't already displayed.

5. Turn the wheel and navigate to FIRMWARE UPGRADE at the bottom of the menu list then press Right Arrow to display the upgrade screen.

6. Press Up Arrow for YES to proceed with the update -- the JM4 Looper will update itself from the SD Card. When the update is complete, the JM4 Looper will power cycle itself. *NOTE: Do not turn off power in the middle of the update.

7. Verify the update was successful by previewing a few Songs and Drum tracks (scroll thru the list – each track will play for a few seconds when you select it).

8.After verifying the update was successful, press the SAVE button again to display the menu list.

9. Turn the wheel and navigate to FORMAT CARD then press Right Arrow to display the format screen.

10. Press Up Arrow for YES and the JM4 Looper will format the SD Card, preparing it for normal operation.

11. When formatting is complete, you're all set. If you ever want to reinstall your firmware, go back to your computer and copy the 'fw.bin' file to your SD Card, then repeat the above steps from Step 2.

12. If you want to load your backed up .WAV files into your JM4 Looper again, simply copy them from your computer into the "Line 6" folder on your SD card using your SD card reader, then load them into your JM4 Looper using the IMPORT WAV FILE FROM CARD command. (consult the JM4 Looper Advanced Guide for info on the option of viewing and loading your files via the SD Recordings Browser).

**FORMAT ALERT: If your SD Card is rejected by the JM4 Looper as not being FAT16, you should format your card and start over. See Format Instructions below. (Also attached)

MAC: FORMAT SD CARD TO FAT16

1. Insert card into Mac via SD card reader

2. Name it UNTITLED (Double click on the icon on your desktop to open the drive>Right Click or CTRL Click on the Drive title and select the Rename option)

3. Open Terminal (via Applications/Utilities)

4. Copy and paste the following in the Terminal window exactly as written here and press Enter on your keyboard.

diskutil partitionDisk /Volumes/UNTITLED 1 MBRFormat "MS-DOS FAT16" "UNTITLED" 100%

5. The SD Card will be formatted to FAT16

6. To confirm, open Disk Utility app (via Applications/Utilities)

7. Select your SD card icon to the left in the Disk Utility window

8. Look at the text info in the lower part of the window; it should look like this (the information displayed below is for a 1GB SD Card so your capacity read out will look different if you are using a 2GB card):

Mount Point : /Volumes/UNTITLED Capacity : 952.4 MB (998,710,272 Bytes)

Format : MS-DOS (FAT16) Available : 951.4 MB (997,638,144 Bytes)

Owners Enabled : No Used : 784 KB (802,816 Bytes)

Number of Folders : 0

PC: (XP/Vista) Format SD Card to FAT16

1. Start Windows Explorer

2. Click on My Computer

3. Select/Highlight The SD-Card Reader/Drive that contains the SD-Card

4. Right Mouse Click and select Format from the pop-up menu

5. Make certain the File System displays: FAT (Default) and not FAT 32

6. File Allocation Unit Size = Default

7. Press Start to begin Format (follow on-screen instructions)

Note: On WinXP system there are only the options for formatting FAT and FAT 32 On Vista system there are the options for: FAT, FAT 32, NTFS, and exFAT

JM4 FAQ

support@line6.com — Tue, 26 Aug 2008 18:46:08 GMT

JM-4 Features:

Backing Tracks: 71 Song Loops and 81 Drum Loops (arranged by Tempo) for a total of 152 pre-recorded backing tracks.

Recording Time: of up to 33 minutes.

36 User-Programmable Preset Locations: (Banks 01-09, A-D). The Artist/Song Presets locations CANNOT be overwritten, but are modifiable and storeable to any of the 36 User-Preset Locations.

Inputs: 1/4" Instrument (guitar, bass), XLR mic (no Phantom Power), CD/mp3 player (1/8" stereo input), 1/4" Auxiliary.

Outputs: Dual-mono audio signal appearing in both left and right outputs on amplifier and headphone jacks.

Product Dimensions: 12.5" (L) x 7.5" (W) x 3.25" (D)

Weight: 4.1 lbs.

Power Adapter: included Line 6 PX-2 only (Specs: 9V, 2000mA, center tip positive, 2.5mm diameter). No battery power option available.

SD Memory Card: 16-bit Mono/44.1K .wav file (ONLY) import capability, 2 GB maximum capacity; SD Card NOT INCLUDED. Card function is for transferring of properly formatted .wav files from computer to JM-4; will NOT record to SD Card directly whatsoever.

Note: Only SD Cards function properly; there is no support for usage of mini-flash cards with an SD Card adapter. For reference on functionality of SD card related tasks, please refer to the JM-4 Advanced User’s Guide, found on the Manuals page.

Known Issues

-Quick Capture = Hold the UNDO switch and then hold down REC switch (not REC + UNDO as it is silkscreened on the unit). In other words, first step on UNDO switch and keep it held down while also stepping on REC switch.

-The "Clip" LED lights up upon powering up the JM-4. This is normal power-up behavior.

-Some of the Artist/Song Presets from the original Spider III release were not included in the JM-4 release due to space restrictions.

-The Guitar Tone Presets (70’s sounds by Song Title) are simply guitar tones. They are not backing tracks. The backing tracks on the JM-4 are original compositions written and recorded by studio musicians specifically for Line 6 Spider Jam and JM-4 products.

Registration & Warranty

Q: How do I register my JM-4?

A: You can register any Line 6 product to your account here: Registration.

Q: What is the warranty on the JM-4?

A: Twelve months from the date of purchase. Authorized Line 6 Service Centers will need you to provide a copy of the purchase receipt to validate date for warranty processing. Please be sure to have those materials ready, should you need to get your unit serviced under warranty.

Troubleshooting & Service

Q: How do I troubleshoot my Line 6 Pedal?

A: Please refer to the Line 6 Pedal Troubleshooting FAQ

Q: How do I perform a Factory Reset on the JM-4?

A: Power on the unit while holding the Settings/Tone button down for 5-8 seconds.

Q: I’m hearing this background noise present when using the JM-4, what should I check?

A: Check to make sure the Mic Trim knob is turned OFF when not using the microphone input.

Replacement Parts & Manuals

Some replacement parts are available from the Line 6 Store. If you are looking for the manual, please go to the Manuals section.