Support and General Use > Hardware
Serious heat issue with Fuze V2
noco:
I was running the stable 3.8 and now tried the latest build, but it did heat up as the 3.8. It looks like I have to go with the Clip+ which seems to work properly. Thanks for your help however!
riseup:
Hello there,
I want to confirm on the heat issue.
I bought a refurbished Fuze (v2) and was very happy to see that I could use it also as a flashlight.
Until then I didn't experience any heat problems although I used it a lot, played games on it while listening to music (over quite a time) etc.
I didn't turn off the flashlight though and left it lying around for maybe 20 minutes.
After I touched it I realized that it got really hot and turned it off imediately.
Same story after it had cooled down, whenever the light of the scroll wheel was turned on, the backlight turned off.
Thanks to this thread I found out that with a permanently turned of light of the scroll wheel, the backlight works properly again.
I can live with a turned off ring light (although I liked it), but there are still some issues:
a) In my opinion, the battery has taken permanent damage, when charging the scale jumps around and even goes backwards, the capacity seems to be a lot lower (I am going to do a battery bench test and post the results later)
b) From time to time, the screen flickers.
Regarding the brightness: If I try to adjust it, I can only choose between 1 and 2 - all the other numbers don't change anything. I don't know though, whether this "bug" was induced by the heat or not because I did not try before.
Are there any new thoughts about that?
Has anyone actually tried to replace the battery?
Does anyone know whether I could get a new refurbished one based on guarantee issues? (I bought it via ebay from another country, so this option is quite a hassle for me, that's why I hesitate to do that)
As this is my first post in this forum, I also want to thank the whole team for the great work they have done. I really appreciate it!
For the manual, however, I think this issue should be covered to prevent further damage.
Greetings,
riseup
e: I am running the current build of RB.
Chronon:
Regarding (a), the battery meter does this anyway. Take a look at any of the posted battery benchmarks. Under varying load the voltage delivered by a battery will fluctuate. So, observing this sort of behavior doesn't automatically indicate any problem. battery_bench results will give a more objective indication of a problem, though it would be better if you had results from before you noticed any problems.
I'm not opposed to adding a cautionary note to the Fuze v2 manual. It should probably mention that a small number of users have reported problems and briefly describe them. You can always post an entry to the patch tracker if you want to hasten this. The manual is written in LaTeX and a diff against the current manual code would be ideal, but you can also just post plain text that clearly indicates the desired change.
If you want to try replacing the battery there are some disassembly/tear-down pics linked in the wiki.
Zander:
--- Quote from: riseup on May 13, 2011, 01:03:44 PM ---Hello there,
I want to confirm on the heat issue.
I bought a refurbished Fuze (v2) and was very happy to see that I could use it also as a flashlight.
Until then I didn't experience any heat problems although I used it a lot, played games on it while listening to music (over quite a time) etc.
I didn't turn off the flashlight though and left it lying around for maybe 20 minutes.
After I touched it I realized that it got really hot and turned it off imediately.
Same story after it had cooled down, whenever the light of the scroll wheel was turned on, the backlight turned off.
Thanks to this thread I found out that with a permanently turned of light of the scroll wheel, the backlight works properly again.
I can live with a turned off ring light (although I liked it), but there are still some issues:
a) In my opinion, the battery has taken permanent damage, when charging the scale jumps around and even goes backwards, the capacity seems to be a lot lower (I am going to do a battery bench test and post the results later)
b) From time to time, the screen flickers.
Regarding the brightness: If I try to adjust it, I can only choose between 1 and 2 - all the other numbers don't change anything. I don't know though, whether this "bug" was induced by the heat or not because I did not try before.
Are there any new thoughts about that?
Has anyone actually tried to replace the battery?
Does anyone know whether I could get a new refurbished one based on guarantee issues? (I bought it via ebay from another country, so this option is quite a hassle for me, that's why I hesitate to do that)
As this is my first post in this forum, I also want to thank the whole team for the great work they have done. I really appreciate it!
For the manual, however, I think this issue should be covered to prevent further damage.
Greetings,
riseup
e: I am running the current build of RB.
--- End quote ---
I can confirm this too, but I didn't use the flash light I just maxed the brightness.
I recently brought another 8GB sansa fuze v2 (marked down from 89.99 to 25.99). I will install rock box on it, but I'm thinking that I will try to change the source code for the brightness so I can only go as high as 8 as opposed to the 25 levels normally you get in rock box.
I just need to know, what language is rock box coded in?
Chronon:
It's written in C (with bits of assembly in certain places).
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