[Huawei P9 Lite ROMs, Kernels, Recoveries, & Other ] Manos001:
Appreciate some clarifications before I attempt the big step (unlock dual SIM on L21)

Hi Sebastian,

I would like to try your tool but want to minimize the chances of bricking my phone so I would really appreciate if you can clarify few things that are not that clear to me on first look. I so apologize for the lengthy message.

1. In tab "packages" it asks to install the matching package for my device. Is this according to my current setup or the setup I want to apply? To be more specific I have an L21SS and want to make it a DS... so on that tab shall I install the package for SS (as it is now) or DS (as my target configuration)?

2. in the same tab "packages" I see that it can install the package you select without having connected the phone. Is this OK or am I doing this wrong? I mean, is this installation supposed to happen on the PC as a preparation step that will move over to the phone during another step of the process? I have seen another post that describes similar (but manual) steps to change P9 Lite to dual SIM and it suggests that you need to deploy a dual SIM patch package first (which I believe is the equivalent to what you do under packages tab) and then the dual SIM firmware. In your tool, does this happen in one go (i.e. during the firmware update step under tab "Dual-/Single-SIM" it also applies the patch that you pre-loaded on the PC under packages tab)?

3. After installing the package, do I go directly to tab "Dual-/Single-SIM" and follow the steps there (which include references to actions described in other tabs) or do I need to go to "bootloader" then "recovery" then "root" and then "Dual-/Single-SIM"?

4. Once I am on tab "Dual-/Single-SIM", and assuming that the answer to my previous question is that I go straight to this tab after installing the package in tab "packages", if I follow the steps it seems that at the time I run step 3 (firmware-update) my device has still locked bootloader and no root. Bootloader is asked to be unlocked and get root at step 4 (after the firmware update on step 3) and then you re-apply the firmware when you move to "upgrade" tab? Is this normal (that step 3 happens with locked bootloader and without root and then you basically do the same upgrade for a second time after you unlock the bootloader and apply root)?

5. In tab "upgrade" under "Dual-/Single-SIM" there is an upgrade button that (if i understand it right) is supposed to perform the firmware upgrade... but then you have the steps described manually below... is the "upgrade" button doing something different than the manual steps below (which are the same steps as in step 3 of preparation tab) and do we need both the button and the manual steps or it is one or the other?

6. During the firmware upgrade, can I use the latest package (B161) right from the start or do I need to flash B130 first?

7. I may have missed this, but it would have been a huge help if you could include a step by step instruction of how to walk through this tool in order to achieve the dual SIM activation, as it contains many tabs and is unclear if we need to go through all of them and in what order.

Many thanks for your efforts and once again apologies for the lengthy message.

with warm regards

Manolis