Aura H2O Kobo won't connect to a PC anymore

Josieb1 · 08-03-2017, 10:03 AM

My Kobo H2O has started exhibiting the following problems when connecting to a pc.

1) It doesn't register the USB connection at all.
2) It brings up the connect popup on the Kobo but the connect button does not register.
3) When it did connect to calibre sucessful invariably it would fail the connection before I could send any books, with an "error communicating with device" message on calibre, but yet my Kobo would spend ages importing content when nothing was sent to the device.

I've now done a factory reset and am at problem number 1, so I can't send any books to it.

Has anyone any ideas whats going on? I did have an SD card installed and a lot of books on the device so i was hoping after a factory reset it would be fine, but its not.

Thanks

icallaci · 08-03-2017, 10:52 AM

No solution, just letting you know I am having the same problem with my H202 and KA1. I connect the Kobo to the computer (have tried 4 different cables with 3 different computers (one running Windows 7, one running Windows 8.1, and one running Windows 10). Most of the time the Kobo connects ok and I can see it in File Explorer. Calibre will get the list of books on the device (most of the time), and sometimes I can even transfer one or more books. But many, many times it loses the connection in the middle of the transfer and I have to disconnect, reboot the computer, reconnect the Kobo, let the computer scan the device and "fix" it, and start the entire process over again. The same USB ports can see flash/thumb drives and other cabled USB devices just fine; only the Kobo H202 and KA1 have this continuing problem. Sometimes after a round of connecting, losing the connection, disconnecting, rebooting, etc. I get the "USB device not recognized" error, so I start again by rebooting the computer, etc. etc. etc. Something is going on ONLY with Kobo devices, and I am beyond frustrated.

issybird · 08-03-2017, 10:52 AM

I don't have anything constructive to offer, but I'm also getting an "error communicating with device" message at Calibre when I connect my H201. However, everything seems to be working still, at least so far, in terms of adding books and shelving them. I did try deleting all books I added in the past few weeks just in case one was corrupted.

I'm still running 3.19.5761 on the device. My other Kobos with later firmware aren't exhibiting this issue.

AnemicOak · 08-03-2017, 11:17 AM

Quote:

Originally Posted by Josieb1

My Kobo H2O has started exhibiting the following problems when connecting to a pc.

1) It doesn't register the USB connection at all.
2) It brings up the connect popup on the Kobo but the connect button does not register.
3) When it did connect to calibre sucessful invariably it would fail the connection before I could send any books, with an "error communicating with device" message on calibre, but yet my Kobo would spend ages importing content when nothing was sent to the device.

I've now done a factory reset and am at problem number 1, so I can't send any books to it.

Has anyone any ideas whats going on? I did have an SD card installed and a lot of books on the device so i was hoping after a factory reset it would be fine, but its not.

Thanks

Kind of leads me to think a cable or USB port (on the device or the computer) problem.

JSWolf · 08-03-2017, 11:36 AM

My H2O works perfectly with Windows 10 & Windows 7. But I did pick up a USB cable the other day that caused the H2O to have a flakey connection to the computer. I was too lazy to go upstairs and get the cable I usually use. But once I got the cable I normally use, I was good to go.

I've plugged into USB 2 & USB 3 ports with no problems.

Josieb1 · 08-03-2017, 11:42 AM

Quote:

Originally Posted by AnemicOak

Kind of leads me to think a cable or USB port (on the device or the computer) problem.

Its happening with four computers and multiple leads, which leads me to believe its the device or the KOBO OS/Calibre OS

Josieb1 · 08-03-2017, 11:42 AM

Quote:

Originally Posted by issybird

I don't have anything constructive to offer, but I'm also getting an "error communicating with device" message at Calibre when I connect my H201. However, everything seems to be working still, at least so far, in terms of adding books and shelving them. I did try deleting all books I added in the past few weeks just in case one was corrupted.

I'm still running 3.19.5761 on the device. My other Kobos with later firmware aren't exhibiting this issue.

My kobo is running the latest software.

JSWolf · 08-03-2017, 11:46 AM

have you tried jiggling the USB connector at the Kobo end in case it's the USB port?

icallaci · 08-03-2017, 12:11 PM

Quote:

Originally Posted by JSWolf

have you tried jiggling the USB connector at the Kobo end in case it's the USB port?

It's not the port or the cable. I've tried different ports (both USB 2 and 3), with different cables, on multiple computers, each running a different variation of Windows. The Kobo connects, then something times out and I lose the connection. With OTHER devices (my android tablet or phone, for example), using the same ports, same cables, same computers--works fine every time.

Edited to add: Yes, I've tried jiggling the cable at the Kobo end, but no joy. And this is with two different Kobo devices--a KA1 and the H202. Same problem with both.

And another edit: I thought it might be a problem with the USB ports going to sleep after a certain period of non-use, so I set them to stay awake, but that didn't help either.

WLo · 08-03-2017, 12:41 PM

This solved it for me when I had the same problem a while ago

https://answers.microsoft.com/en-us/...2-8089dfdbb0bf

Josieb1 · 08-03-2017, 01:03 PM

Thanks for all your advice. I managed to get my H20 connected to calibre and transferred 599 books (according to Calibre) after removing the SD card. Unfortunately the front screen says I have 481 books (but I think that includes the non downloaded Kobo purchases) but the settings say I only have imported 158 books.

So as you can see I am totally fed up and confused.

I'm going to park the kobo in a drawer and forget about it, it's far too much trouble, I'll go back to reading on my Kindles. I won't ever by a Kobo ereader again.

And to add to the mess I have two kobo books in my library on my device with no download button. According to my kobo website library one is listed, but I need to rebuy it, and the other isn't in my kobo website library at all. I know I bought both books from kobo as I have the downloaded ePub safely stored but I can't prove it as my purchase history will not display, I just get an error message.

Josieb1 · 08-03-2017, 01:04 PM

Quote:

Originally Posted by WLo

This solved it for me when I had the same problem a while ago

https://answers.microsoft.com/en-us/...2-8089dfdbb0bf

Only one of my pc's is windows 10. I get the same issues on Windows 7 and a Mac.

davidfor · 08-03-2017, 09:15 PM

I don't know how to solve the problems reported. One of the reasons is because there are not enough details. Reporting that calibre displays the message, "error communicating with device" is almost completely useless. This will be displayed for a lot of different reasons. You need to look at the detailed message to get a better idea of what is happening.

For example, JosieB's first report sounds like the database was corrupt. My guess is that the database got corrupted and she added books afterwards. These were processed into the memory list of books, but could not be written to the database. Now, at disconnect, the database is reloaded and books are missing and have to be reprocessed. That's an educated guess. Seeing the details of the message would tell me if that was the likely reason.

Issybird's report also suggests a corrupt database, but probably in a different part of the database and a less severe problem.

icallaci · 08-03-2017, 11:16 PM

I don't think my problem is due to a corrupt database, because when the Kobo actually does connect and I am able to use the Kobo Utilities to check the database, it always reports OK. Windows 7 is most consistently able to connect and keep the connection (only has a problem maybe 25% of the time), Windows 8.1 and 10 are terrible, sometimes as much as 75% of the time. Next chance I get to fight with...sorry, to connect one of my Kobos, I'll try to capture the actual error behind "Error communicating with device."

davidfor · 08-04-2017, 12:26 AM

Quote:

Originally Posted by icallaci

I don't think my problem is due to a corrupt database, because when the Kobo actually does connect and I am able to use the Kobo Utilities to check the database, it always reports OK. Windows 7 is most consistently able to connect and keep the connection (only has a problem maybe 25% of the time), Windows 8.1 and 10 are terrible, sometimes as much as 75% of the time. Next chance I get to fight with...sorry, to connect one of my Kobos, I'll try to capture the actual error behind "Error communicating with device."

I didn't comment on the reason for your problem as I had no idea, but, no it isn't likely to be a corrupt database. I have seen reports like it and it always feels the USB connection is being over stressed and failing. If that is write, it could be the hardware in either the PC or device, or the drivers in either place. I've never come up with a way to fix it. But, I would like to see the error to see if there is a common place in communications with the device that fails.

The main problem I see with the USB connection is combination of bad design, a little clumsiness and a well used USB socket. On my laptop, the USB sockets are on the sides towards the front. There are two on the left and one on the right. I frequently hit anything plugged in with my hand while using the laptop. This can be enough to disconnect the device for a few moments and then connect again. When that happens, Windows will usually report an "unknown device" and calibre will report an error. And a lot of the time the port stops working until I reboot. Sometimes just restarting the device will work, but mostly I need to restart everything.

08-03-2017, 10:03 AM	#1
Josieb1 Wizard Posts: 4,956 Karma: 18018738 Join Date: Nov 2009 Location: UK Device: Kobo Sage, Forma, Libra2, Clara 2e, Kindle PW6.8 & Voyage	Kobo won't connect to a PC anymore My Kobo H2O has started exhibiting the following problems when connecting to a pc. 1) It doesn't register the USB connection at all. 2) It brings up the connect popup on the Kobo but the connect button does not register. 3) When it did connect to calibre sucessful invariably it would fail the connection before I could send any books, with an "error communicating with device" message on calibre, but yet my Kobo would spend ages importing content when nothing was sent to the device. I've now done a factory reset and am at problem number 1, so I can't send any books to it. Has anyone any ideas whats going on? I did have an SD card installed and a lot of books on the device so i was hoping after a factory reset it would be fine, but its not. Thanks

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
kobo and calibre don't connect anymore	naima_	Kobo Reader	2	09-28-2016 11:06 AM
Calibre 2.26 won't connect to a KOBO H20 running 3.15	Josieb1	Devices	1	04-30-2015 03:20 PM
Kobo Touch won't connect to some computers	temazur	Kobo Reader	2	01-22-2015 05:29 PM
Calibre won't connect to Kobo Aura HD	ophelia	Devices	1	11-09-2013 05:00 PM
Help!! My Kobo Ereader Won't Connect to Calibre	Manish00333	Devices	4	08-30-2012 05:33 PM

08-03-2017, 10:52 AM	#2
icallaci Guru Posts: 723 Karma: 6528026 Join Date: Sep 2012 Device: Kobo Elipsa, Samsung Galaxy Note 8, Galaxy Tab S2 8.0	No solution, just letting you know I am having the same problem with my H202 and KA1. I connect the Kobo to the computer (have tried 4 different cables with 3 different computers (one running Windows 7, one running Windows 8.1, and one running Windows 10). Most of the time the Kobo connects ok and I can see it in File Explorer. Calibre will get the list of books on the device (most of the time), and sometimes I can even transfer one or more books. But many, many times it loses the connection in the middle of the transfer and I have to disconnect, reboot the computer, reconnect the Kobo, let the computer scan the device and "fix" it, and start the entire process over again. The same USB ports can see flash/thumb drives and other cabled USB devices just fine; only the Kobo H202 and KA1 have this continuing problem. Sometimes after a round of connecting, losing the connection, disconnecting, rebooting, etc. I get the "USB device not recognized" error, so I start again by rebooting the computer, etc. etc. etc. Something is going on ONLY with Kobo devices, and I am beyond frustrated.

08-03-2017, 10:52 AM	#3
issybird o saeclum infacetum Posts: 18,918 Karma: 214666306 Join Date: Oct 2010 Location: New England Device: H2O, Aura One, PW5	I don't have anything constructive to offer, but I'm also getting an "error communicating with device" message at Calibre when I connect my H201. However, everything seems to be working still, at least so far, in terms of adding books and shelving them. I did try deleting all books I added in the past few weeks just in case one was corrupted. I'm still running 3.19.5761 on the device. My other Kobos with later firmware aren't exhibiting this issue.

08-03-2017, 11:36 AM	#5
JSWolf Resident Curmudgeon Posts: 70,289 Karma: 117650829 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	My H2O works perfectly with Windows 10 & Windows 7. But I did pick up a USB cable the other day that caused the H2O to have a flakey connection to the computer. I was too lazy to go upstairs and get the cable I usually use. But once I got the cable I normally use, I was good to go. I've plugged into USB 2 & USB 3 ports with no problems.

08-03-2017, 11:46 AM	#8
JSWolf Resident Curmudgeon Posts: 70,289 Karma: 117650829 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	have you tried jiggling the USB connector at the Kobo end in case it's the USB port?

08-03-2017, 12:41 PM	#10
WLo Junior Member Posts: 4 Karma: 10 Join Date: May 2015 Device: Aura HD	This solved it for me when I had the same problem a while ago https://answers.microsoft.com/en-us/...2-8089dfdbb0bf

08-03-2017, 01:03 PM	#11
Josieb1 Wizard Posts: 4,956 Karma: 18018738 Join Date: Nov 2009 Location: UK Device: Kobo Sage, Forma, Libra2, Clara 2e, Kindle PW6.8 & Voyage	Thanks for all your advice. I managed to get my H20 connected to calibre and transferred 599 books (according to Calibre) after removing the SD card. Unfortunately the front screen says I have 481 books (but I think that includes the non downloaded Kobo purchases) but the settings say I only have imported 158 books. So as you can see I am totally fed up and confused. I'm going to park the kobo in a drawer and forget about it, it's far too much trouble, I'll go back to reading on my Kindles. I won't ever by a Kobo ereader again. And to add to the mess I have two kobo books in my library on my device with no download button. According to my kobo website library one is listed, but I need to rebuy it, and the other isn't in my kobo website library at all. I know I bought both books from kobo as I have the downloaded ePub safely stored but I can't prove it as my purchase history will not display, I just get an error message.

08-03-2017, 09:15 PM	#13
davidfor Grand Sorcerer Posts: 24,908 Karma: 47303748 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	I don't know how to solve the problems reported. One of the reasons is because there are not enough details. Reporting that calibre displays the message, "error communicating with device" is almost completely useless. This will be displayed for a lot of different reasons. You need to look at the detailed message to get a better idea of what is happening. For example, JosieB's first report sounds like the database was corrupt. My guess is that the database got corrupted and she added books afterwards. These were processed into the memory list of books, but could not be written to the database. Now, at disconnect, the database is reloaded and books are missing and have to be reprocessed. That's an educated guess. Seeing the details of the message would tell me if that was the likely reason. Issybird's report also suggests a corrupt database, but probably in a different part of the database and a less severe problem.

08-03-2017, 11:16 PM	#14
icallaci Guru Posts: 723 Karma: 6528026 Join Date: Sep 2012 Device: Kobo Elipsa, Samsung Galaxy Note 8, Galaxy Tab S2 8.0	I don't think my problem is due to a corrupt database, because when the Kobo actually does connect and I am able to use the Kobo Utilities to check the database, it always reports OK. Windows 7 is most consistently able to connect and keep the connection (only has a problem maybe 25% of the time), Windows 8.1 and 10 are terrible, sometimes as much as 75% of the time. Next chance I get to fight with...sorry, to connect one of my Kobos, I'll try to capture the actual error behind "Error communicating with device."

Advert

Advert