I too have a the same problem as the rest of the countless users here on iFixit as well as on other forums including XDA. Even though the G Watch R was the best looking rugged smart watch to be released as the time it seems most shittiest of products. Thumbs down to LG.
My watch worked fine, until it decided to die all of a sudden while on my hand, thought there is no juice left,but even though charging/changing cradles and chargers it did nothing. Pressing the the side button makes the screen blink with the charging battery icon but thats it.
The strange thing is when u leave it in cradle over night, i mean over good 4 or 5 hours left to charge, it decides to come back to life. But stays on only while on the plugged in to power, the moment you take it out same problem, it just dies.
The charging ports are, clean. The side button and touch responds (when it decides to switch on), i even once did a factory reset, also i have removed it and serviced it with 90% alcohol.
Im really really frustrated with this bloody piece of junc, please advice me what i should do next.
Where i live, there is no eBay access, even they do, chances are high it gets stolen in domestic post.