Chord Mojo 2 Thread ___ [product released January 31, 2022 -- starting on page 95 of thread]

Dec 5, 2024 at 8:51 AM Post #12,016 of 12,508
1) Try another microUSB cord.
2) Try another USB charger.

It's usually one if these issues as opposed to the Mojo2 being broken.
No luck sadly...

The red light is not even flashing any more. I think I used up the very last drop of power and because it's not charging it's fully dead.

The charging circuit seems completely unresponsive. I'm going to leave it connected to a charger for an extended time and see if that revives it. Happy to take any other suggestions
 
Dec 5, 2024 at 9:19 AM Post #12,017 of 12,508
Has anyone here had any issues with the Mojo 2 not charging? I have it connected to a power supply. the little LED by the charge port doesn't light up. When I press the power button it flashes red. The other lights also flash for split second, but no sign that it is charging then it all switches off again.

fearing the worst here...
I had this problem with an open-box Mojo 2. I had a frustrating 48 hours trying different cables and chargers before I sent it back to the retailer. The new one I received has not had any problems, but I'm trying to never let the battery run down completely.
Good luck, I hope it's a simple cable issue in your case!
 
Dec 5, 2024 at 10:36 AM Post #12,018 of 12,508
I had this problem with an open-box Mojo 2. I had a frustrating 48 hours trying different cables and chargers before I sent it back to the retailer. The new one I received has not had any problems, but I'm trying to never let the battery run down completely.
Good luck, I hope it's a simple cable issue in your case!
It may be that my battery is dead and needs replacing. I have emailed chord and been in touch with my retailer. Mine is out of warranty so an repair will be at a cost. depending on what they say its either fix it or start shopping around for a new DAC... in which case the question becomes

To mojo 2 or not to mojo 2...

the DC elite looks tempting, so does the muse M5 Ultra. Wondering what alternatives people think could be worth considering?... or is everything else a step down ( thread bias aside :P)
 
Dec 5, 2024 at 1:55 PM Post #12,019 of 12,508
It may be that my battery is dead and needs replacing. I have emailed chord and been in touch with my retailer. Mine is out of warranty so an repair will be at a cost. depending on what they say its either fix it or start shopping around for a new DAC... in which case the question becomes

To mojo 2 or not to mojo 2...

the DC elite looks tempting, so does the muse M5 Ultra. Wondering what alternatives people think could be worth considering?... or is everything else a step down ( thread bias aside :p)
Mojo 2 battery is like 20 bucks on ebay/amazon and has connectors (no soldering needed). You can try plugging the new battery and see if it powers on/charges. If it does, then just swap the old one out for new one. IF it doesn't charge, it's probably a board issue and going to cost you more.
 
Dec 5, 2024 at 2:16 PM Post #12,020 of 12,508
Mojo 2 battery is like 20 bucks on ebay/amazon and has connectors (no soldering needed). You can try plugging the new battery and see if it powers on/charges. If it does, then just swap the old one out for new one. IF it doesn't charge, it's probably a board issue and going to cost you more.
Thanks... you may be right about it being a board issue... I've had it plugged into the a charger for a few hours. it has warmed up but no sign of working.

I will probably send it in for repair and find out what the damage is... to the device and my pocket.

Out of interest, how do you rate the Mojo 2 vs the DC Elite?... (spotted in your gear list)
 
Dec 5, 2024 at 3:04 PM Post #12,022 of 12,508
Sorry but I didn't have the same experience, it's probably not just a question of galvanic isolation, the noise could be introduced from the source before the conversion to Toslink.
What noise?
what conversion?
Noise is in analogue domain. Unless somebody use an ADC to convert it to digital, it remains analogue. Digital data coming out of Toslink has not been converted. it has been in digital domain, and it remains in digital domain through Toslink. But since, Toslink is electrically isolated, only digital data can pass through.
Think of it as a cake recipe, for as long as it remains a recipe, no bacterial infection can occur (infection= noise). The recipe can be transmitted by post, email or SMS, it is irrelevant! The DAC then cooks up a new cake, using the instructions from the recipe.
Rrmember, the sound we hear from our hifi, is merely a fresh audio, created by the DAC from the instructions of digital data, using the Powersupply.
 
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Dec 5, 2024 at 3:09 PM Post #12,023 of 12,508
No luck sadly...

The red light is not even flashing any more. I think I used up the very last drop of power and because it's not charging it's fully dead.

The charging circuit seems completely unresponsive. I'm going to leave it connected to a charger for an extended time and see if that revives it. Happy to take any other suggestions
Contact Chord Support by email.
They repair it, no problem. They do not charge a lot.
 
Dec 5, 2024 at 6:17 PM Post #12,025 of 12,508
Thanks... you may be right about it being a board issue... I've had it plugged into the a charger for a few hours. it has warmed up but no sign of working.

I will probably send it in for repair and find out what the damage is... to the device and my pocket.

Out of interest, how do you rate the Mojo 2 vs the DC Elite?... (spotted in your gear list)
Mojo 2 is always tied to the Poly, hence mostly used only inside the house.
DC-Elite for out and about, connected directly to the iPhone/iPad.
Having to use the gofigure app to change the access point everytime, put a damper on the poly's usage.
DC-Elite on the other hand drains the Phone's battery faster.
Sonically, the DC-Elite is a little bit better in terms of imaging, separation and soundstage.
I was going to list the Mojo 2 after getting the Elite, but it pairs well with some of my iems, so I've decided to hold onto them.
 
Dec 5, 2024 at 6:29 PM Post #12,026 of 12,508
What noise?
what conversion?
Noise is in analogue domain. Unless somebody use an ADC to convert it to digital, it remains analogue. Digital data coming out of Toslink has not been converted. it has been in digital domain, and it remains in digital domain through Toslink. But since, Toslink is electrically isolated, only digital data can pass through.
Think of it as a cake recipe, for as long as it remains a recipe, no bacterial infection can occur (infection= noise). The recipe can be transmitted by post, email or SMS, it is irrelevant! The DAC then cooks up a new cake, using the instructions from the recipe.
Rrmember, the sound we hear from our hifi, is merely a fresh audio, created by the DAC from the instructions of digital data, using the Powersupply.
I don't want to sound arrogant but I know the difference between digital and analog domain, when I talked about USB to Toslink conversion, I was referring to the translation between two digital protocols, the signal must therefore be repackaged to be transmitted via light.

Regarding noise, it is not true that it is present only in the analog domain, noise is also present in the digital domain and is interpreted as data errors caused by disturbances during processing: quantization errors, timing jitter, transmission errors and data corruption and manifests itself discretely as bit errors.

If the DDC used does not have a quality USB interface and Toslink circuit, it could introduce timing errors and have a more or less subtle impact especially with very sensitive DACs.

For this reason my experience was negative and using the Mojo 2 via Toslink was not the solution for me, therefore I preferred to invest in a good isolator rather than a quality DDC... but it was just my choice based on my needs
 
Dec 6, 2024 at 1:07 AM Post #12,027 of 12,508
just got my mojo 2 just a few hours ago... sound wise even with very initial listen, it blows my hipdac and btr15 out the water.. i can imagine it can only get better!

on my windows laptop and android the usb audio is clean and no white noise explosion...

however i realized that with android Tidal app, it doesn't go into exclusive DAC mode... only 48khz... UAPP has no problem going into exclusive DAC, however i've downloaded my whole library in Tidal app for airplane use...

Does anyone have any solution to this? would like to have the best SQ on my tidal downloads on the plane....
 
Dec 6, 2024 at 1:58 AM Post #12,028 of 12,508
just got my mojo 2 just a few hours ago... sound wise even with very initial listen, it blows my hipdac and btr15 out the water.. i can imagine it can only get better!

on my windows laptop and android the usb audio is clean and no white noise explosion...

however i realized that with android Tidal app, it doesn't go into exclusive DAC mode... only 48khz... UAPP has no problem going into exclusive DAC, however i've downloaded my whole library in Tidal app for airplane use...

Does anyone have any solution to this? would like to have the best SQ on my tidal downloads on the plane....
I don't think there's any way round that buddy I'm afraid, until Tidal find a will or a way to bypass Android upsampling.

Next slide down the slippery slope is a dedicated DAP. From there, say goodbye to your bank account
 
Dec 6, 2024 at 2:03 AM Post #12,029 of 12,508
I don't think there's any way round that buddy I'm afraid, until Tidal find a will or a way to bypass Android upsampling.

Next slide down the slippery slope is a dedicated DAP. From there, say goodbye to your bank account

DAP means having to buy each hires song? haha if i use DAP to stream Tidal then the android upsampling still persists haha
 
Dec 6, 2024 at 2:27 AM Post #12,030 of 12,508
DAP means having to buy each hires song? haha if i use DAP to stream Tidal then the android upsampling still persists haha
No you can find DAPs that do not upsample so you would just have to DL your Tidal library again.

Personally tho if it were me I wouldn't worry about it much for plane usage, there's so much background noise that I doubt I could tell the difference with Android shenanigans
 

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