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12 comments

  • Yeti

    Last night my wife's Samsung S10 could no longer access the SD card. Backcountry Navigator no longer could access the SD card either. My legacy ES File Explorer no longer works at all. Google has taken away access to the android folder. After Googleing the issue I found a site that gave a couple of file managers that would fix the issue. I downloaded both. One didn't work but Solid Explorer from the Play Store did. When I ran it I had to give permission to access the SD card & if I put in an external SD card had to give permission there too. The good news is, after doing that Backcountry Navigator had access again & all my other apps did as well EXCEPT ES Explorer which is no longer being updated so I had a feeling that someday it would no longer work. Too bad.

    I hope this helps if anyone else has this issue. I have installed it on my tablet as it is android 10 & may get updated at anytime. I wanted to be ready.

    Good luck!

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  • Yeti

    Since my last post Android 11 now cuts of access to the SD card android data folder completely and no file manager can access it at this time. In addition BCN Pro can't "browse for it's own maps in it's own folders. That causes BCN Pro to crash every time. I have put in a request & to Nathan to look into this & will be anxiously waiting. We are leaving for a long hike in less than 4 weeks & need the app.

    Yeti

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  • Maggie

    I am having something similar except that I can see and record (save) my maps but I cannot export them (says its finished exporting to /storage/9C33-6BBD/Android/data/com.crittermap.backcountrynavigator.license/data) but I cannot access or locate this.  I have read somewhere that Android 11 may have changed the external storage and made it "Scoped Storage" which means that maybe BCN has lost access to see or write to my external sd.  I tried to browse set the storage to a different directory but BCN does not see anything other than mnt/obb or asec (both are read only).  

    I have no idea what to do or how i can save and export from the external SD

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  • Yeti

    I was contacted by Dan from Backcountry Navigator & they are aware of the issue & are working on a fix for it. It should be fixed in their next update so be patient. This is a Google issue. I'm directing my anger at Google for taking away the ability to control my own SD card. It doesn't belong to them. They are heading in the direction of Apple where you have no control of something you own. In case you aren't aware Google writes Android.

    Yeti

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  • Mike

    Has there been any update on this?  I just got a new tablet with Android 11 and I'm having this problem with the SD card.  I want to be able to put my maps there.  I can select the SD card as the storage location but it does not create the android/data folder for BCN.

    I'm really starting to hate google.

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  • Yeti

    If I can find a way to contact the Google development team I will jump on them for this. Perhaps a class action lawsuit would be in order. We own these phones, not them.

    Now that I have vented, they are working on this. There has been some progress. What I have done is a put an "atlases" folder outside the Android\Data folder, put my custom maps there as I share the maps with another app. Then I point BCN to that folder & it works, I ONLY do this for Android 11 though. I have 4 android devices but all are Android 10 or lower except one. I rooted my Android 10 to avoid this issue. If you are not sharing maps, you can remove the card after shutting down & put your maps on via a usb adapter, But I like this way better.

    There are still a couple of issues yet to resolve though but I just got an update that they are working on this. I hope this helps.

    Yeti

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  • Yeti

    PS: an app named File Manager + (available from the app store) can now at least load the Android\Data folder & read files but as yet can't write files. I think they are working on this as well. I like to back up my BCN data files & have been pulling the card to do that but now I can do that with File Manager +.

    Yeti

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  • Mike

    Thanks for the update, Yeti.

    Ya, I hear ya.  Google REALLY pisses me off.  When android first came out it was great and now it seems to keep getting worse with every release.  The factory bloatware really drives me crazy.

    Well, I have downloaded a massive amount of map data that is currently in the /bcnav folder on the device root.  I want to be able to put all of this on the SD card and I don't really care where it goes.  These are the BCnav internal tile files though so I don't know that they can be put in a custom map folder and read, but, admittedly, I haven't tried this yet.  I was also thinking about seeing if I could use ArcGIS to format all of these tiles into a big custom map, but I digress.

    Does Android10 have this same issue?  I have already downloaded firmware and was going to flash my tablet back to 10 to see if it solved the problem but I won't bother if this isn't a fix.  I haven't rooted anything yet either but I will if I have to.

    I downloaded Total Commander and, when I installed it, it either created it's own /extSD/Android/Data folder or allowed me to see it.  The only com. in that folder is actually for total commander itself.  I can create folders in the /android folder but not in the android/data folder.  BCNav still can't do anything.

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  • Yeti

    Hi Mike, yes Android 10 does NOT have this issue. My good tablet whit Android 10 (which I rooted) doesn't have the issue. I do have to OK accessing the android\data folder on occasion because A10 started the "scoped storage" garbage but let you decide & allowed access. I can even access y device with the computer & move or add things from there.

    If you can flash your tablet back to Android 10, then I would do that. I could not do that with my wife's phone which is the one with Android 11. It got updated a couple of times before I even knew about the "scoped storage" issue so it was too late. The only file app I have tried that allows you to see the files in the Android\data folder on the SD card is File Manager +. There could be others but I haven't found one so I'm sticking with it. You have to tell BCN to use that folder which it can do.

    I have made 3 maps of the entire west from Montana and all the states under Montana to the coast in three flavors (Legacy National Geographic Topo, Open Street Map, & Google Hybrid in MOBAC which took me months to make and are HUGE files (that's why I share with another app) on a 500gb SD card. I don't want to give these up so I'm keeping up on this issue. I put them in the BCN\atlases folder EXCEPT for Android 11, I put them in "atlases" folder in the SD card root where everyone can access & share it. BCN fixed that so it works with one minor issue they are working on.

    Hope all this helps & if you need anything else let me know.

    Yeti

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  • Mike

    OK, awesome, thanks.  I'll try to downgrade to 10.

    Why couldn't you get your wife's phone back to 10?  Does it have to do with the version of 11?  This tablet came with 11 already on it so hopefully there's nothing preventing me from going back to 10 but I dunno.

    OK, good call, you're right, I can access a mappack folder on my SD card BUT it won't recognize the .bni tile files so I would have no choice but to build them into a map.

    Wow, that sounds awesome.  What software are you using to build your maps?  I think I should just go ahead and build some custom maps too so I get exactly what I want.  I hate downloading map data every time I install BCNav on a new device.

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  • Yeti

    I don't think you can do that as the bootloader could be locked. I use Samsungs & they are locked with Knox. I had to break Knox to root my tablet but so far no way to root my wifes yet.

    I use MOBAC (Mobile Atlas Creator). It's free & awesome! You want to make a sqlitedb (rmaps) file. There is a choice specifically for Backcountry Navigator Pro (not XE yet). There are maps available for free. These files I made are really large (one is 100mb) as I made the down to level 15 & 18 for towns I on long hikes I'm interested in or have done, It would take months to duplicate these. There is a tile number limitation so what I had to do is make tracks for each state that where sections breaking each state into 8 sections. Then I made 8 maps for each state & combined them with SQLite2009 Pro (free) with a scripts I wrote to combine them into a full state overlapping the borders a short way. SQLite2009 Pro scripts remove all duplicate tiles so that isn't an issue. After getting all the states, I used SQLite2009 Pro to combine them all into one big file. I did this for all three versions (Natgeo, OSM, & Google Hybrid). I encourage you to learn how to do this as it's nice to make your own. If you need help, I'd be glad to, we should take this off the forum & private. My email is yeti1938@gmail.com. I have an offer for you if you email me.

    Yeti

     

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  • Yeti

    I noticed as I was reading through all the post on this subject that I mentioned my All West sqlitedb maps were huge files & said (100mb), I meant 100GB. Two of them are 100GB, the OSM version is only 16GB. That's why I got a 500GD micro SD card. I have that size on all 4 of our devices so I can use all those maps. We are doing another thru hike in 2022 & I just made some special maps for it.

    I haven't heard from BCN yet regarding the Scoped Storage issue but in some of the updates Nathan sends out he has mentioned that they are working on it. It sounds like they are having to do a lot of re-writing & he mentioned they can't put out updates (mandated by Google) until they meet with all the new specs. That's outrageous but Google has all the control. I still haven't found a way to talk to anyone on the Google team about this. If anyone knows a way, please post it here. I'll be happy to engage with them.

    Yeti

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