Random When you google xda developers sonim xp3 there is a thread on rooting it and being able to install apps without adb i couldnt figure it out but maybe someone else can root one of the versions sprint or us cellular?
TryingToBeHelpful Random [Login to see the link] goes on without ADB. Maybe someone can take a look at it and see why it is able to go on without ADB.
esaphire3 To ensure that Zello will install and work properly, you must use the most recently signed .apk file with Sonim's signature from our website. The link to this file is here.
TryingToBeHelpful Random See [Login to see the link]. Apperaatly its possible if Zello was able to do it.
Random Zello probably worked with sonim if I remember clearly it did not even work until one of the updates