Some applications (file managers) are unable to sustain valid MTP-database.
ZF Model: ZB602KL
RAM: 4G
Firmware/APP Version: *.338, *.339
Frequency of Occurrence: constantly
Rooted: No
APP Name: MTP interface
Last edited by owlsday.aa on 2019/1/31 17:25
I have tried three popular file managers for Android:
1) Total Commander, v. 2.91
2) X-Plore, v. 4.12.00
3) FX, v. 7.2.2.2
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During MTP-connection (to Windows XP SP3):
File operations of (1) are not represented at all (created files/folders don't appear; deleted files/folders are "ghosts" - present in Explorer, but not accessible).
(2) is OK in all operations (bug doesn't appear).
(3) has an option "Update the Android media database when files change" - which has partial effect:
ON - deleted folders are removed in MTP, but created folders are still invisible;
OFF - deleted folders are "ghosts" in MTP, created folders are invisible.
=======
Author of (1) says he has tested this at Android 8.0 (can't test at 8.1), and everything is OK.
So I suspect that Android 8.1 has renewed MTP-updating calls, but redirection of old calling is buggy.
RAM: 4G
Firmware/APP Version: *.338, *.339
Frequency of Occurrence: constantly
Rooted: No
APP Name: MTP interface
Last edited by owlsday.aa on 2019/1/31 17:25
I have tried three popular file managers for Android:
1) Total Commander, v. 2.91
2) X-Plore, v. 4.12.00
3) FX, v. 7.2.2.2
=======
During MTP-connection (to Windows XP SP3):
File operations of (1) are not represented at all (created files/folders don't appear; deleted files/folders are "ghosts" - present in Explorer, but not accessible).
(2) is OK in all operations (bug doesn't appear).
(3) has an option "Update the Android media database when files change" - which has partial effect:
ON - deleted folders are removed in MTP, but created folders are still invisible;
OFF - deleted folders are "ghosts" in MTP, created folders are invisible.
=======
Author of (1) says he has tested this at Android 8.0 (can't test at 8.1), and everything is OK.
So I suspect that Android 8.1 has renewed MTP-updating calls, but redirection of old calling is buggy.
0
This discussion has been closed.
Comments
Is the error presented when connected to PC (windows XP)?
For Total Commander and FX, could you show me screenshots of the error?
Thank you.
All operations are done _before_ MTP-connection.
Error alert is seen only on access to a ghost-file (which is really absent). Ghost-folders are entered and deleted without alerts.
Shot: ADB shows real state of the file system, while MTP view is not updated in parts.
* del_1~4 are created by "Files" (stock file manager),
* del_# are deleted by corresponding apps,
* new_# are created by corresponding apps;
* del_4, new_4 - by FX with "Update Media Database"=off
/* Seems fixed in Android 9.0 upgrade (Pie.053). */