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Use a very small solder-iron tip. You can also make a homebrewn solder tip by wrapping around a ~2mm thick copper-wire around your existing solder tip and file it very pointed and use that for soldering. Sorry, hard to describe, i hope you understand what i mean, cant currently find a picture of it.
[ 3049.972884] usb 4-2.3: new full speed USB device using uhci_hcd and address 11[ 3065.048437] usb 4-2.3: device descriptor read/64, error -110[ 3080.227910] usb 4-2.3: device descriptor read/64, error -110[ 3080.419764] usb 4-2.3: new full speed USB device using uhci_hcd and address 12[ 3095.495317] usb 4-2.3: device descriptor read/64, error -110[ 3110.674790] usb 4-2.3: device descriptor read/64, error -110[ 3110.866645] usb 4-2.3: new full speed USB device using uhci_hcd and address 13[ 3115.882837] usb 4-2.3: device descriptor read/8, error -110[ 3120.998952] usb 4-2.3: device descriptor read/8, error -110[ 3121.193803] usb 4-2.3: new full speed USB device using uhci_hcd and address 14[ 3126.209994] usb 4-2.3: device descriptor read/8, error -110[ 3131.326111] usb 4-2.3: device descriptor read/8, error -110
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