yashsingh1/xdaforums huggingface dataset:
[General Accessories] jordanmills:
Well I was able to do something that made the right light slowly turn on then off again. And now lights aren't working reliably (ie the left light flashes like normal when I turn them on, but the lights stay dark when I plug it in to charge). It doesn't seem to respect me pressing both right buttons to turn the lights on and off.

I've tried it with the headsets on and off, tried it with various USB ports, and the like. I'm pretty sure I've done it the right way at least once, but no dice.

Thanks for putting up with my fumbling though.
[General Accessories] medmansri:
I guess you can add me to the list of failures. I can't get my SYN0948A to go into the flash mode. I've followed the instructions but the lights do not flash at all. Is there any other way? (hopeful)
[General Accessories] partonigrifi:
I guess you can add me too!!! (SYN0948A) ;-(
[General Accessories] nerker:
I just flashed my 48A with the firmware provided above. Great Job!!! No more skipping. Not to mention, the range of the headset has increased by about 5 metres. Dont know if that was supposed to happen :lol:
[General Accessories] jwzg:
Glad I could help Nerker.

If you see new hardware added (Ht820) when you attach the headphones, they are in boot mode whether the light is flashing or not. Make sure you are pressing the forward and back buttons (NOT the volume) and the power is OFF when inserting the USB cable. (all caps for emphasis, not screaming, lol)
[General Accessories] drummer10630:
Thank you so much for posting this. I followed the instructions and my headphones (syn0948a) work flawlessly. No more skipping!!!
[General Accessories] kenjichui:
downloading... will try later.
[General Accessories] sandiegodude:
I too have followed the directions to the T and I cannot get the headset into flash mode. Hmmm.... Find new hardware wizard?
[General Accessories] leoiden:
WHAT ARE WE MISSING????

we need details about updating the firmware if possible little video tutorial please ,can,t get it to connect via usb????
[General Accessories] darkjedi:
So I have the 948D version that I bought from Newegg, and I don't get any skipping at all; but this is cool for the people who have the older units :)
[General Accessories] aleksandr:
skipping.. not working at all.. fixed!

Ok, just to add my two cents,

I have HT820 not sure about the firmware, I just stumbled on this thread just now, will check when I get home. I do not have a skipping problem with my prophet, but I did have skipping problem with my desktop running Win XP with widdcom BT stack 5.802 with belkin BT dongle. In fact it wasn't skipping the sound, it was skipping the silence and I could hear the sound for a split second:) But that problem got fixed by purchasing Jabra BT Audio USB Dongle and installing widdcom BT stack 5.1011(not sure about exact version revision, but it is newer) that came with the dongle. Funny thing though, now I have no skipping on my desktop and my laptop even using belkin BT dongle and new widdcom stacks, but my second desktop with same software and hardware is giving me the same problem. But re-pairing the headset fixes the problem some times. So if any body got a problem with PC, I think updating bt stacks could help. If any body interested, I'll look it up exact version and let you know.
[General Accessories] sandiegodude:
I just wish I could initiate flash mode on the bt820. Turned off, hold -> and <- buttons, insert usb. no go.
[General Accessories] jwzg:
There is a tutorial inside the .rar. The screen shots are from Win2000, but the instructions are the same.

The buttons you push before plugging in are on the right earpiece. Just making sure you know.

I'll see if I can take a short vid after my Wizard charges a bit.

It does work on some, but seems not to work on others...stay tuned.

JB
[General Accessories] hashbrown:
where exactly does it list the firmware on the headphones? Dont see it anywhere inside headband. please dont say on the box. its all in chinese except the instruction manual and Motorola logo
[General Accessories] jwzg:
It is definitely inside the headband on the side of the left earphone. It's quite small and the designation should be SYN948A, be or C, depending on your model. Mine were Chnese as well and were the A model.

If your headphones skip, you can go ahead and flash them, since the update tool will allow you to roll back to the original firmware. Just use the revA in the .rar.

Good luck!

PS: I couldn't get the video to upload, so the instructions in the .rar will have to do.
[General Accessories] mazzageo:
Thanks for these posts

Awesome stuff guys I applied thepatch and have it working very well ... still havent used the priority setting on the registry but I will attempt later...

Thanks again
[General Accessories] bubu:
A vers but no way to put my Ht820 in bootloader... any ideas?
[General Accessories] muizmotani:
Should I buy HT820 knockoffs from Hong Kong?

So what is the verdict? Is it safe to buy those HT820s from eBay sellers in Hong Kong?
[General Accessories] rafael.lopes:
I really can't get into the upload mode (connect the HT820 with my PC using the USB cable). I keep the forward and backward button pressed, plug the USB and after 3s and release the both buttons. But nothing after many and many attempts...

Any suggestion??

Does anyone know how to recognize a fake HT820, because I’m starting to think my it is one.
[General Accessories] jwzg:
The power should be off when you plug in.
[General Accessories] rafael.lopes:
Yes, I forgot to say. The HT820 is off when I try to connect to my PC. I keep the forward and backward button pressed, wait 3s (but I tried more and less seconds too) and when I connect the USB cabble, the "M"s on the side of phone turns on and the PC never "finds" the new device.
[General Accessories] bubu:
same here...
[General Accessories] liva:
i have HT820 SYN0948D , and it's work well for me :-)
[General Accessories] rafael.lopes:
Bubu,

Where did you buy it? Because I bought at the eBay with "n*capri*n".

Take a look what I've been trying to do:

http://www.youtube.com/watch?v=_i5uoyYh6C8

I don't know why, but the video is very fast. Believe, I keep the both button pressed for 3s.
[General Accessories] giciu:
any solution for D series ?
[General Accessories] kecido:
Hello people,

I also bought my HT820 headset from Ebay, Honk Kong seller, I was very happy when I came across this thread, tried to flash my headphones, but as many people around (the majority?), no luck, nothing happens, no entering in flashing mode, tried on two different computers, with five different cables (see, my universal do works just with its own cable, so there are differences among them), nothing, no luck.

I want to say also that I also had the problem with the lights, i'll tell you more, after all the tests (yes! I'm so curious, after all I'm an engineer!), I pressed back and forward, M key (both sides), volume up and down, tried with phones on and off and I think all this messing provoked the final problem, my phones where death! I even opened them, charged the battery externally, no luck, I even wrote the Ebay seller (no answer until now), fortunately, I'm so curious and have a so hard head, that I've re-tried all the mess again, guess what? My phones returned alive again!

I think I might do some other tests, but there's not much more that can be done, when I opened my phones, I noticed that these are refurbished ones (sold as new by those Ebay people in Asia, mmm, not very honest), they were repaired, there is a little "extra" connection between two points on the right earpiece pcb, something like this might efectively prevent the phones "flashing" while we don't know what this "repair" exactly do.

Hope this help anyone else.

bye
[General Accessories] Dimon666:
It WORKS

I have HT820 SYN0948A

Did turn off

Did press Forward and Backward buttons

Did plug the USB cable in

The "M" lights go flashing

PC has detected new device

Installed the driver included

Flashed - OK

NO MORE SKIPS!!!!!!!!!!!! :):):) =))
[General Accessories] jwzg:
Outfugginstanding....
[General Accessories] ralexco:
Using a mac

Beside not being able to view the php files I can't get my HT820's to mount. Running Mac OS X.

Anybody else?
[General Accessories] kecido:
I've just re-opened my HT820s and made some shots (pictures), another user wants to know about the modify, but, I just haven't figured yet how to put them in a pm, in any case, I think I know what's the problem with my headphones (the reason why I cannot make updates).

It seems that a USB line driver (IC) or something like that is missing in my headphones, perhaps someone can take some photos of a working headphones, both sides of the usb mini side board.

I think that many of us will be grateful if We figure out how to solve our problems.
[General Accessories] PrinceJ:
I too cannot update to latest firmware

can't get my headphones to go into flash mode!

headphones off

hold both buttons

plugged USB cable in

let go button after 3 secs

lights do not flash, remains constant
[General Accessories] kecido:
Just as I said, I might figured out what's the problem with our headphones, seems that there should be at least two different types of these headphones, I bought mines from an Asian ebay seller, it is possible that these headphones where intended to be sold to the asian (chinese) market, so to make them cheaper, they intentionally left out one component inside the headphones (an ic that seems to be the responsible of buffering the usb communication port in the headphones).

Someone should kindly make some photos of a "flashable" headphones (open the right side earphone -with a torx T6- and make some photos of it, both sides, just below the usb mini connector i have a place for an ic that is directly connected to the usb connector, even better should be to have a service manual, I know I'm asking too much, but I think that the thread starter has better contacts/knowledge of motorola stuff than me.

I work for a semiconductor maker, we could sort out to get the parts that are needed or a usable substitute.

I'll be waiting for an "illuminated" soul

bye
[General Accessories] PrinceJ:
You do know

You do know that this firmware is available from Asia right? So, I don't think it has to do with the region where it's manufactured from. It may be that we got fake ones or something. I don't know. I bought my from a ebay seller in Florida. Also, the A series.
[General Accessories] kecido:
I know that the sofware comes from Asia, and what I was meaning to say is that there might be different variations (mine is also the A series), manufactured FOR different regions (not FROM).

You might also be right to think that ours migth be some kind of fakes, why? Well, mines are refurbished, or they just might be faulty ones, never came to sale at a store and repaired to be sold through ebay, so what would be the problem for someone to pick them up, they are "defective" non finished goods, you know how to repair some of them "easily" and then you sell them in ebay, 70% of original price, you say they're new (in some way they are really new) and that's it!

My headphones had also several traces of re-glued parts, you know, the classic white halo that forms around a fat drop of cianoacrylate glue?

Even inside of them.

Anyway, I don't mind, it's useless to cry for something that already happened, I even tried to get in contact with ebay seller (yes, it's still there), nothing, no answer; after all, the headphones do function, if my suspects are right, there will be a very easy way to solve this problem.
[General Accessories] smartin:
HT820 firmware

Hi,

Where do you get the latest firmware for HT820 ?

I've looked at Motorola site and couldn't find it.

BTW. when my battery runs out i cannot use the headset

even as the wired headphones. Is that normal ?

Cheers
[General Accessories] jwzg:
Try the front page of this thread.
[General Accessories] bjc:
bad flash

I applied this upgrade, but was still having problems, so went to restore the previous firmware, but it failed. Now the headphones won't even turn on :( and they won't go into update mode.

Anyone got an idea how to recover from a bad flash?
[General Accessories] kecido:
Before I realized that my headphones had some problem, I tried lots of combinations to put them into flash mode, -none worked- but, after so much tests, headphones just ceased to function, -they had stopped to blink when I turn them on first, but that was only annoying-, so, having nothing to loose, I repeated the whole thing again (playing with lots of pressing one or more buttons simultanously), guess what, they turn back alive.

I don't know if this will help you, but I can definitively tell you that every button/combination of them, does much more that We know, after all there's some kind of microcontroller/asic inside.

So, try pressing the + and - and plugging the phones to USB, try pressing one of the M keys (first one, then another), perform a go/no go test after every combination you make and most of all GOOD LUCK.
[General Accessories] bjc:
Thanks kecido! I got it to work. I pressed back and forward for 3secs then hooked up the usb cable, even though the lights indicated that it wasn't in update mode I was able to re-flash it.
[General Accessories] demetriew:
I bough 2 ht820 off of ebay for 95.00 and for the most they work great. I bough 1 for my dad to use with his sam. sink. The sink already has a2dp on it so it was just plug and play for him. Works perfect for him. On the other hand i have the 8125 and i had to download zoki a2dp cab. sounds great but it skips here and there. I hate that it does that. Tried the firewire but failed

also when i turn on the microwave my bt starts f*cking up

So for all of us that failed has anyone found anything yet. Anything at all
[General Accessories] watchsat:
My HT820 also is "locked", just like your, and same thing happened to me... After tried sooo many different button combinations, the headset stop working; then I keeped trying and suddenly it just backed to live again... ;-)

Anyway, I think maybe we could find out the "missing wire" form the chip's datasheet, if there is one available from Broadcom...

cheers,
[General Accessories] kecido:
Well, to be honest a better and deeper investigation is possible but I have lots of troubles in my life now, I'me trying to do my best, as you point out, looking for the main controller/asic in internet would be a good starting point, I just wanted to save much of the time by having some photos of on pair of "flashable" headphones (may be BJC can help us out with this?), in this way I could have save much research time to find out if (something) and what is missing in our phones.

If it is like I think, well, that missing thing should be some kind of USB transceiver or even simpler, an USB terminator (basically a network of resistors and diodes).

Our Asian friends, could even make us simpler and faster the whole thing, I don't know who, but somebody has brought us the UNniversal service Mmanual (just to keep strange eyes out), that's just amazing, why can We have the HT820's serVvice Mmanual?

I'm willing to make all the "experiments" on my own phones, I could find a suitable part/fix and then share it with the rest.

Somebody asked me for the photos I took of my phones, I've gave him, no man, I'm not kidding, I'm having this "sensation" that people is too concentrated on theirselves (I know that somebody will be mad about this statement), no offense, I mean that We might (just might) be more collaborative with each other, there's no "illegal" affair in fixing our "hardware".

As I said before -and I'll not say much more, not now at least-, I'm an electronics engineer (since long time), don't want to win a prize for this, if I can help, I'll try to do it, because in this case I'm also helping myself.

cheers
[General Accessories] nils11:
how to open headset

Thanks for the successful discussion.

I guess I also got one of these Hong Kong versions that are not flashable, but to verify this I would like to open the headphone. I have problems to remove the black ear rings blocking the screws. How did you manage to remove these without breaking them?

Probably a procedure to open the headphones (I could provide the pictures then) would help people with a working version to make the pictures. Honestly, if mine would not have problems, I would not open it under the risk of breaking it.

Thanks
[General Accessories] kecido:
I'm always happy to help, as I think I've already said, I have sent some photos of my phones to another user that ask me to do so, but all these photos regard the internal boards, anyway if there's somebody interested on these photos I could post them, I'll try to make other photos to show exactly how these headphones can be opened without harming them.

I think in any case that it's realtively easy to open these:

First, to release the earbuds (or ear rings) you just have to turn them CCW (contrary clock watch) until they stop turning, then you can pull them off the headphones, they might not come out "easily" but this is just because these are not "hard" plastic parts, so pulling them out might bend'em a little (nothing to be worried), try pulling them from the base.

When the ear rings have come out, you'll see the three torx screws, T6 screw driver will be needed to remove these, I've personally used allen (hexagonal) keys to remove some torx screws, don't know the exact measure to use in this particular case, if you have a ser of little allen keys, you can try them out.

Presto, the phones are open!

Beware that the circuitry inside is always somehow "delicate" and the reasembling requires to place everything "in place", so I advice to check very well the exact position of everything when you open them.

Now the photos I already have, img 2420 is the back of the whole right ear board, at the center bottom the mini USB connector is quite visible, just over the four ground fixing points of this connector (the silver rectangles) is the place of the "missing" chip.

Img 2423 is a detail of the "components" side of the same board, it is clearly visible the "fix" performed to the headphones.

I'll try to make the photos for the disassembly procedure, bye for now.
[General Accessories] marcellos:
careful with Hong kong seller n*capri*n

The headsets they sell are probably fake:

check this:

http://213.19.178.16/se

Judge for yourself, but if you think you have a fake headset, you should asap file a dispute with paypal, so you can get your money back.
[General Accessories] r3bel:
i just received mine today as a birthday present.

they are [...48A] model from hong kong and will not enter flash mode.

i guess i'll be asking if the seller was n*capri*n!

edit: (the sound quality is great and they work, but dropouts is an issue (not lag). i was expecting the firmware to fix it, but ah well...)

edit2: gggrrrr the person who bought them didn't even pay with paypal. stupid e-checks.
[General Accessories] aranaformae:
Help , I think mine are fake too , but i can't really tell if they are. and i don't like to open them. and i tried to flash the rom but same as a few others here. It won't enter flash mode.

i've the a version of the headset please can someone help me?
[General Accessories] r3bel:
what we need is for someone who sucessfully upgraded their firmware to send us photos of their internal circuit boards.

does anybody have any objections to me sending a private message to each person who's said on here that it worked for them, appealing for someone to help us?
[General Accessories] r3bel:
is the missing bit that part about 1mm X 2mm with 3 contacts on each side (6 pins total) right in the middle of the usb connector's fixing points? i see what you mean about being simple to replace! :)

what's the 'obvious fix'? can you circle it? also, your filenames aren't coming up, you'll have to refer to them some other way :(
[General Accessories] jyriok:
hello all

i have buy a hong kong ht820 too and mine don't want to flash too :'( and,especially , i don't have any sound in left ear :'(

i have the package of the picture , i think it's the fake :s

i will try to open ear for compare with other inside picture. i need to find some T6 screws driver.

!! sorry for my bad english, i'm french ^^' !!
[General Accessories] r3bel:
omg :O

my packaging didn't look anything like that, i think i've got a fake.

did anyone else's come in a round plastic carton?
[General Accessories] kecido:
Yup, the missing part is the one you noticed (6 pins total), just in the middle of mini USB conn, it should be fairly easy to "attach" whatever is missing right there (assuming that it's just one the missing part and that is the 6 pin part).

About the fixing I got in my phones, well, for experienced eyes there is a quite noticeable thing that brokes any industrial assemble schemes, just over the round black component with the "100" number printed on top (this is a little transformer or it might be an inductor), you can see a little almost square ic (actually it is a rectangle, but who cares), there's a copper color wire that goes from one side of this ic, from left side to right side atop of it (or might be is from right side to left side ;-)), that wire wasn't definitevely planned to be there originally.

As r3bel say, I asked for someone help, anyone of those who had succesfully flashed their headphones, so far there has been no answer, I also can understand this, why should anyone with a perfect product (might still have warranty) just open it to please some people over the net?

So, no hard feelings this time.

About the fake things, as far as I've seen, these headphones have been sold with inside many different boxes (mine has a beatiful Asian girl that's wearing the phones), lately i saw in Ebay those round boxes or plastic boxes, some of them where even sellers in Holland or the States.

As I said before, there are several reasons or possibilities, in my case the fake phones is one of them, the headphones are not well manufactured, not all the joints and plastic/rubber parts were incised well, I personally saw the "fake" sony-ericsson phones that might be causing panic to someone, see them with great care, IF those phones are fake, well, they are a very good copy.

Other explanations have been offered, some of them offered by myself, I'll not explain in detail, but you can trust me, there are more possibilities, not just that they are fake, even if they are fake, well, let's hope that this fakes are "good fakes" and that we can get'em closer to the real ones ;)

About english (this is for you jyriok), I think that most of us are not english native speakers, personally I'll tell only one thing else about me (this might get mad some gringos, just kidding), I'm an american, more exactly I'm Mexican.

So my english is a "taco english".

Enough for today.

Bye people
[General Accessories] mangoman:
regarding fake ones, are the M buttons shiny silver or "bronze" like?

i got an motofreedom pack, ht820 and dc800. Europe version.

The box etc looks legit, everything was in there. But it was not sealed, and something about it looks fishy.

mines a SYN D version, and bronze M

googles, and found pics just like my set. maybe legit after all

http://www.gmobile.ru/news/200504/687.html

http://www.handygemein.de/ttfiles/motorola/ht820/index.html
[General Accessories] jyriok:
mine have Chrome 'M' button :s

and i have open my left headphone ear (volume button side) and the pcb is green (i will take some shot after)

edit : i have open mu right headphone ear too. the back is the same of 2420 picture but i have différence with the 2423 picture. badly, i don't have camera here :s i will take some picture later

i have the rev 1.1 to but my number is : 36008900000002 (you have the 1)