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Author Topic: Electrum for Android  (Read 21186 times)
romerun
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March 20, 2016, 01:22:37 PM
 #121

Oh no, after using the android  wallet for a while it cannot send anymore with this error "unpack requires a string argument of length 4". I guess some inputs might have broken the functionality.
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April 21, 2016, 11:33:06 AM
 #122

Oh no, after using the android  wallet for a while it cannot send anymore with this error "unpack requires a string argument of length 4". I guess some inputs might have broken the functionality.

Oh yes! I have the same problem

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April 23, 2016, 06:10:06 AM
 #123

Oh no, after using the android  wallet for a while it cannot send anymore with this error "unpack requires a string argument of length 4". I guess some inputs might have broken the functionality.

thanks for noting this. I just uploaded a new apk on Google Play

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April 26, 2016, 05:10:33 PM
 #124

I'm a first timer to use electrum, because i prefer to use android I download it from google play store, but unfortunately I cant use properly these app in my android, it always crash when I'm going to use it, so better to uninstall. And it seems there are so many negative feedback here,so better not to use  it just now, I just try again if there is a new update of the app

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April 29, 2016, 12:23:41 PM
 #125

Are the stated issues fixed in the new update?
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October 17, 2016, 06:06:41 PM
 #126

I have the old python/e4a version of the electrum wallet. I'm looking to get the wallet & private keys from my device so that I can consolidate the address on my PC and then upgrade electrum on my device. does anyone know where those files are located on my device?
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October 19, 2016, 07:25:26 AM
 #127

I have the old python/e4a version of the electrum wallet. I'm looking to get the wallet & private keys from my device so that I can consolidate the address on my PC and then upgrade electrum on my device. does anyone know where those files are located on my device?

all you need is the seed. you can display it from the application.

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romerun
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January 04, 2017, 12:15:13 PM
 #128

There used to be a tutorial on how to import the default_wallet created on desktop into Android electrum. I can't seem to find it.

I remember having to do that when creating multisig wallets on desktop, then somehow transfer them to Android devices thru adb.

I bought a new phone, need to set the android electrum up from one of the default_wallet files on Desktops.
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January 04, 2017, 08:07:02 PM
 #129

Just search for files without an extension named *_wallet with "wallet_type" in contents on a PC. On Android it also just writes to a file(as shown in https://github.com/spesmilo/electrum/blob/master/lib/storage.py) but the only file I see is ./org.electrum.electrum/blockchain_headers which are from the hosted blockchain and there is no ./Android/data/ folder. It seems to be set by a setup config which isn't on github. You'd have to dig around inside the .apk. My guess is it's using some android preferences API service..

centralized seed management is ideal.. or just use a hardware wallet or the air-gap feature..

I have faith that one day this forum will get threads where people won't just repeat their previous posts or what others have already stated in the same thread. Also that people will stop acting like BTC is toy-money and start holding vendors accountable. Naive? Maybe.
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January 15, 2017, 04:38:02 PM
 #130

Hello,

neither I am an expert in bitcoin/Electrum nor have I ever traded/bougt bitcoins but I plan to...
For that I would like to make an offline wallet (or "cold storage" how it is called by Electrum) on an Android phone. And a watch-only-wallet on another phone or computer.
So here some questions:

1.) Is that possible with the Android version? I can't find any "import (unsigned) transaction", "sign" or "export (signed) transaction" buttons. I couldn't try it because I have no bitcoins yet, so I can't create any transaction.

2.) When I create a wallet I have to type in a 6 digit pin (which is the encryption passphrase for the private key(s)/seed, right?). Is there any possibility to choose any alpha-numeric "pin" with any length? I would really prefer a longer, not-only-digts - passphrase. (This was already asked in this thread but I don't really understandd the answer...)

3.) I think there is a minor bug in the app: I have to tap three times the upper right menu in order to open it (on two smartphones, one with Jelly Bean the other with Marshmallow).

4.) (just for interest): What is the seed for the seed?  Cheesy The "Electrum seed" is just a 128 bit (pseudo) random number... but what is the seed for that number? Is it the time on the phone?
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