Thanks. It worked ! IFIXIT was out of stock on this battery replacement but I found a battery on eBay that was advertised as NEW and it is a Huawei branded battery. Hopefully it IS indeed new. After insertion, it did charge up to 100% and we will see how long it lasts. I was only getting about 4 hours on my old battery. Thanks for posting the procedure.

I replaced battery but can NOT get unit to work. Battery fully charged as tested by multimeter. Following lights are on and solid: Power Button is yellow. Mute button and AUX buttons are white, BTooth button is Blue. If I reset unit (while NOT connected to charger) by holding mute button for 10 secs, the Mute and Aux buttons flash white for a second then return to the same state (Power Button is yellow. Mute button and AUX buttons are white, BTooth button is Blue). If I reset unit (while CONNECTED to charger) by holding mute button for 10 secs the Mute and Aux buttons flash white for a second then the POWER BUTTON flashes RED quickly. Is there any other secret way to get this unit working with the apparently good replacement battery??? What else could be wrong with this unit and how can I troubleshoot it? Any help would be apprectiated.