07-31-2020, 11:57 PM
(This post was last modified: 08-01-2020, 12:13 AM by LazLong.
Edit Reason: Clarification
)
RE: BraveHeart EG25 Modem Fail and No Sim Card Detected
Newbie here:
Although received BH PP in Feb/March have not had time to test until recently.
I would appreciate any help in getting this EG25 modem functional or determining if it is a lost cause.
Background:
1. Right out of the box the EG25 failed the PostmarketOS factorytest.
Note that this includes when the phone is connected to power with battery fully charged.
Have tried various techniques in turning on the phone including holding the power button for various and extraordinarily long times on start up.
2. It has failed each time subsequently as well.
(I had seen reports that EG25 often/always fails without a sim card inserted so dismissed most of my concern until recently.)
3. Shortly after receipt of the phone, flashed Ubuntu Touch to uSD and it flashed and seemed to work fine within the constraints of what UT was capable of at that point in time.
More recently:
1. Test of the EG25 continues to fail to detect the sim card even in the latest PostMarketOS factory test versions that include the eMMC flash capability.
2. Working sim cards are not detected.
Have tried two different unlocked AT&T compatible sim cards (reported working here in the forum) that function in my other phones and they are not detected in PostMarketOS factory test.
3. Nor are these two sim cards detected in various recent builds of UBPorts, Mobian, and PureOS OS's when flashed to uSD.
Sim card never detected. Note this includes with the WiFi and/or Bluetooth enabled or disabled.
Please also note that the sim cards are definitely properly inserted under the uSD slot.
I am now considering the unhappy possibility that the EG25 modem may be dead or damaged.
Have seen reports that under certain conditions unexpected loss of power to modem can damage the EG25's firmware. I am not aware that this has happened with this phone but I'm sure its possible as it is very easy to accidentally hit the phone's power button when handling the phone.
In addition it is sometimes difficult to know when the phone has completely turned off so its possible that the battery has been removed inappropriately cutting power to the phone and EG25.
I am unclear whether this reported firmware damage is permanent or possibly fixable and would appreciate clarification on this?
Is it possible (or at some point in the future will it be) to reflash the EG25 to restore operability or will a physical replacement of the modem or the phone's mainboard be required?
In UBPorts I have run the following two modem scripts (see below) mentioned elsewhere in the forum and they seem to execute without obvious errors but not sure what should be looked for and the result is that the sim cards are still not detected and EG25 continues to fail in the original PostMarketOS factorytest and fails to detect sim card in all OSs tested.
Code:
sudo /usr/share/ofono/scripts/enable-modem
sudo /usr/share/ofono/scripts/online-modem
Will appreciate any help that can aid in either getting the modem functional or even just determining if the modem is a lost cause so that I can stop endless retests. Thank you in advance.
Newbie here:
Although received BH PP in Feb/March have not had time to test until recently.
I would appreciate any help in getting this EG25 modem functional or determining if it is a lost cause.
Background:
1. Right out of the box the EG25 failed the PostmarketOS factorytest.
Note that this includes when the phone is connected to power with battery fully charged.
Have tried various techniques in turning on the phone including holding the power button for various and extraordinarily long times on start up.
2. It has failed each time subsequently as well.
(I had seen reports that EG25 often/always fails without a sim card inserted so dismissed most of my concern until recently.)
3. Shortly after receipt of the phone, flashed Ubuntu Touch to uSD and it flashed and seemed to work fine within the constraints of what UT was capable of at that point in time.
More recently:
1. Test of the EG25 continues to fail to detect the sim card even in the latest PostMarketOS factory test versions that include the eMMC flash capability.
2. Working sim cards are not detected.
Have tried two different unlocked AT&T compatible sim cards (reported working here in the forum) that function in my other phones and they are not detected in PostMarketOS factory test.
3. Nor are these two sim cards detected in various recent builds of UBPorts, Mobian, and PureOS OS's when flashed to uSD.
Sim card never detected. Note this includes with the WiFi and/or Bluetooth enabled or disabled.
Please also note that the sim cards are definitely properly inserted under the uSD slot.
I am now considering the unhappy possibility that the EG25 modem may be dead or damaged.
Have seen reports that under certain conditions unexpected loss of power to modem can damage the EG25's firmware. I am not aware that this has happened with this phone but I'm sure its possible as it is very easy to accidentally hit the phone's power button when handling the phone.
In addition it is sometimes difficult to know when the phone has completely turned off so its possible that the battery has been removed inappropriately cutting power to the phone and EG25.
I am unclear whether this reported firmware damage is permanent or possibly fixable and would appreciate clarification on this?
Is it possible (or at some point in the future will it be) to reflash the EG25 to restore operability or will a physical replacement of the modem or the phone's mainboard be required?
In UBPorts I have run the following two modem scripts (see below) mentioned elsewhere in the forum and they seem to execute without obvious errors but not sure what should be looked for and the result is that the sim cards are still not detected and EG25 continues to fail in the original PostMarketOS factorytest and fails to detect sim card in all OSs tested.
Code:
sudo /usr/share/ofono/scripts/enable-modem
sudo /usr/share/ofono/scripts/online-modem
Will appreciate any help that can aid in either getting the modem functional or even just determining if the modem is a lost cause so that I can stop endless retests. Thank you in advance.
