Update Rooted Kit Kat ANI2

[widowmaker17]

Ok, I bought a new Verizon S5 in July of 2015. I rooted it a couple days later using Towelroot. The CID is 11, so it has a locked bootloader. I never had a single issue with the phone, and honestly, never thought about doing any updates, as it just kept chugging along dependable every day. I recently retired the S5, as I bought a mint, used Note 4 and fell in love with it. I am getting ready to sell the S5, but want to fully update it to 6.0.1 Marshmallow DQH2. I am not worried about losing root, as I am selling the phone, and will probably remove root anyway. I have a few questions though:

1) Can I update from Kit Kat all the way to Marshmallow and the latest update, or do I have to do it in increments?
2) Is it easier to update, then remove root?
3) What would be the easiest way to update to DQH2?
4) Since its rooted, can I just download the stock DQH2 firmware and flash it in Odin and go from KK to MM?
4A) If it can be flashed as stated above, will I lose root?
4A-1) Is there a rooted DQH2 firmware that can be flashed?

Thanks in Advance!!!

 

[bbsc]

0) Check if Reactivation Lock is turned OFF.
...
4) Flash this DQH2 and it will erase everything, including root.
4A) Yes.
4A-1) No.

Forget the rest of the questions.

P.S. The first boot after flashing will take 10-15 min. so be patient.

 

[widowmaker17]

0) Check if Reactivation Lock is turned OFF.
...
4) Flash this DQH2 and it will erase everything, including root.
4A) Yes.
4A-1) No.

Forget the rest of the questions.

P.S. The first boot after flashing will take 10-15 min. so be patient.

Thanks. Whats the highest I can update, and retain root? I am re-thinking things now, as the package disabler app I was using and very fond of.... has been updated, and evidently does not work like it used to. I used this app on my Note 4, and was so happy with being able to disable all the bloatware and OTA etc... that I didnt bother to root the Note 4. I thought that if I lost root upgrading the S5, I would just install the same package disabler app, so it wouldnt be a problem, as thats really the only reason I root.... to get rid of bloatware. I may want to keep root now though

 

[bbsc]

Whats the highest I can update, and retain root?

BPB1, Android 5.0.
You may also like the idea to install a custom debloated 6.0.1 ROM without root. If you've decided not to sell the S5.

 

[delfuhd]

Just another viewpoint if you haven't updated the phone yet: there are buyers who look primarily for phones with earlier versions of android, and it could actually increase the value/selling chance of your phone if you keep it on an earlier version and advertise it as such.
This gives the purchaser the opportunity to install the version they might want, especially since it's relatively difficult to find a Verizon S5 (or any Verizon Samsung phone) with 1. an unlocked bootloader and 2. an earlier version of Android such as KitKat installed.
I know this doesn't necessarily answer your questions, but it might be of benefit.