The original Myo XP uses an older Luxeon LED, which outputs a cool-white, somewhat bluish beam by modern standards. Advanced DIYers often desolder the stock emitter and replace it with a modern, high-CRI (Color Rendering Index) LED like a Cree XP-G2 or Nichia 219B. This modification dramatically improves color rendition in the dark and can slightly increase battery efficiency. Direct Drive / Li-ion Conversion
Aging units are prone to alkaline battery leakage. Cleaning contacts with white vinegar or lemon juice is essential for maintaining power flow.
With the model discontinued, there is no official support from Petzl for repair as of 2021. This means you must turn to DIY repair or purchase a new headlamp.
Wipe clean with rubbing alcohol and let it dry completely. Apply a tiny dab of dielectric grease to prevent future oxidation. Upgrades and Modifications petzl myo xp repair 2021
: Take out the AA batteries if you plan to store the headlamp unused for more than a month.
Repairing a Petzl Myo XP in 2021 is a rewarding weekend project for those with moderate soldering skills. The lamp's simple mechanical design makes it accessible, but its Achilles' heel—the fragile cable—remains. By carefully replacing the wiring, upgrading the LED, and sealing the housing, you can give this old workhorse a second life for light-duty tasks around the house or campsite. For anything critical, however, the peace of mind offered by a modern headlamp is likely a better investment.
Unlike in 2010, you can no longer walk into an REI and buy a Petzl repair kit. You will need to source generic or upgraded parts. The original Myo XP uses an older Luxeon
: A Torx T6 screwdriver, soldering iron, and wire strippers. Disassemble the Headset
: Always cut the power source before working on electronics.
Place the PCB back into its dedicated slots inside the rear housing. Direct Drive / Li-ion Conversion Aging units are
Use a small wire brush, steel wool, or a flathead screwdriver to scrape away the remaining crust until shiny metal is visible.
: Insert fresh AA batteries into the pack. Turn the headlamp switch to the "on" position. Gently wiggle the cable where it enters the battery pack, and then where it enters the lens housing. If the light flickers, you have found the broken wire.
Pull the reflector, lens, and LED circuit board out of the housing.
Push the top catch and remove the batteries.