[KERNEL][PIE/TEN]LuisKERNEL Linux 4.9.215 for GTS4LVWIFI & GTS4LVLTE devices

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Handeman707

Senior Member
Jan 21, 2010
1,968
577
Den Bosch (NL)
After installing the "LuisKernel" my Tablet stopped after booting screen.....
I did the method described on the OP-page.

Any advice tot Root the right way, i trying for three days now!, I have some experience with rooting phones and tablets, but this T720 Tablet is hard too root...

Thanks Anyway!


[Solved]
 
Last edited:

lapora

Member
Mar 12, 2019
41
8
There a new kernel version, February 8th it doesn't fix the tablet to pc connection problem.

If you gonna use smali patcher do it this way: adb over wifi as i did it last night and it worked fine no cable needed.
 
Last edited:
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lapora

Member
Mar 12, 2019
41
8
You install TWRP first and than the LuisKernel with TWRP?

If i remember correctly i installed TWRP with odin then luis kernel via TWRP.


BUT it took me hours because there was many errors and problems. This tablet was the hardest to root for me.

I had the most problems with VBMeta and boot loops but after i installed the official Rom i flash it with Odin and after many tries it worked.
 
Last edited:

Lord Sithek

Senior Member
If i remember correctly i installed TWRP with odin then luis kernel via TWRP.


BUT it took me hours because there was many errors and problems. This tablet was the hardest to root for me.

I had the most problems with VBMeta and boot loops but after i installed the official Rom i flash it with Odin and after many tries it worked.
Did you try to root the official ROM with Magisk first and pre-root TWRP image before flashing it to recovery partition? This is suggested on the official TWRP site for this device.

I'm still before the procedure and I'm waiting for the PC fix for Luis kernel, but meantime I'm trying to get as much knowledge as possible :)

Sent from my mido using XDA Labs
 
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Handeman707

Senior Member
Jan 21, 2010
1,968
577
Den Bosch (NL)
Did you try to root the official ROM with Magisk first and pre-root TWRP image before flashing it to recovery partition? This is suggested on the official TWRP site for this device.

I'm still before the procedure and I'm waiting for the PC fix for Luis kernel, but meantime I'm trying to get as much knowledge as possible :)
Howto pre-root TWRP?
 

Lord Sithek

Senior Member
Howto pre-root TWRP?
I never did it myself, but I found that advice on the TWRP page of this device:

https://twrp.me/samsung/samsunggalaxytabs5ewifi.html

"You are therefore strongly advised to first root your device with Magisk and then pre-root a TWRP image before flashing it to recovery."

I'm just gathering information, so I don't know the exact procedure.

Sent from my mido using XDA Labs
 
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Handeman707

Senior Member
Jan 21, 2010
1,968
577
Den Bosch (NL)
I just did this by pre-rooted the TWRP by using the official TWRP app by Google Play Apps, but after that I see indeed the TWRP showing up, but after that when boot up by system. I went stuck on after boot screen... " black screen", Samsung logo don't show up anymore...

So I flashrd "Magsik_patched" trough Odin and everything was working "normal" again.

But no working TWRP.....

Is really hard to get this for this Tablet S5e.
 

grävling

Member
Nov 14, 2011
45
12
Göteborg
I just did this by pre-rooted the TWRP by using the official TWRP app by Google Play Apps, but after that I see indeed the TWRP showing up, but after that when boot up by system. I went stuck on after boot screen... " black screen", Samsung logo don't show up anymore...

So I flashrd "Magsik_patched" trough Odin and everything was working "normal" again.

But no working TWRP.....

Is really hard to get this for this Tablet S5e.

I didn't get working TWRP using the TWRP from Google Play Apps. I did get it using one from TWRP's site directly:
https://dl.twrp.me/gts4lvwifi/
 

kingwicked

Senior Member
Aug 11, 2011
801
536
www.kingwicked.deviantart.com
there is a solution I found to fix bluetooth
there is a magisk module bluetooth library patcher. which makes the device remember
not forget the passwords after reboot or airplane mode switch on off.

the OP seems not interested in updating the kernel for it.

Any body has solutions for MTP. will try an adb file manager if that works today
 
Last edited:

8224Freak

Senior Member
May 6, 2017
705
2,917
Berlin
LuisKERNEL Update to Linux 4.9.217 + Wireguard 0.0.20200318 kernel driver

Hello Friends,

i have updated my LuisKERNEL up to Linux 4.9.217 from caf sources and wireguard kernel driver up to 0.0.20200318.

Downloads:
TWRP: http://luis-builds.de/downloads/lin...s4lvlte)/LuisKERNEL-4.9.217-twrp-20200322.img
Odin: http://luis-builds.de/downloads/lin...s4lvlte)/LuisKERNEL-4.9.217-odin-20200322.tar

if you have a rooted device then after flash my kernel reflash magisk or other SU for root your device!

Cu Frank

Changelog:
* kernel/samsung/sdm670/
0923934ff053 Merge branch 'upstream-korg-linux-4.9.y' into 10.0-luis-los
11254e5c2d36 net: update wireguard 0.0.20200318
10a20903d7ac Linux 4.9.217
0bde22da659c ipv4: ensure rcu_read_lock() in cipso_v4_error()
ff58bb340c43 mm: slub: add missing TID bump in kmem_cache_alloc_bulk()
ed14ef08c55a ARM: 8958/1: rename missed uaccess .fixup section
3a4c51d02e70 ARM: 8957/1: VDSO: Match ARMv8 timer in cntvct_functional()
e06aeb9f3da6 jbd2: fix data races at struct journal_head
4306259ff6b8 signal: avoid double atomic counter increments for user accounting
d2a49017c249 mac80211: rx: avoid RCU list traversal under mutex
4f1547a774dd net: ks8851-ml: Fix IRQ handling and locking
c0d470e3ec3b cfg80211: check reg_rule for NULL in handle_channel_custom()
5e953295a8d9 HID: i2c-hid: add Trekstor Surfbook E11B to descriptor override
479912f78ffc HID: apple: Add support for recent firmware on Magic Keyboards
f2a18533a69e ACPI: watchdog: Allow disabling WDAT at boot
22333af249bc perf/amd/uncore: Replace manual sampling check with CAP_NO_INTERRUPT flag
135075ae4eaf batman-adv: Use explicit tvlv padding for ELP packets
34673c28f43d batman-adv: Avoid probe ELP information leak
3c6ed319b82f batman-adv: update data pointers after skb_cow()
baed34edb061 batman-adv: Don't schedule OGM for disabled interface
1f9fd18c2025 batman-adv: Avoid free/alloc race when handling OGM buffer
5841c1bb484f batman-adv: Avoid free/alloc race when handling OGM2 buffer
5f6dd57c7b50 batman-adv: Fix duplicated OGMs on NETDEV_UP
3c3e542a40ad batman-adv: Prevent duplicated gateway_node entry
b081203732b8 batman-adv: Fix multicast TT issues with bogus ROAM flags
292ddcd9d68e batman-adv: Avoid storing non-TT-sync flags on singular entries too
9bcfdf4f8fa1 batman-adv: Fix debugfs path for renamed softif
f7e13c96077a batman-adv: Fix debugfs path for renamed hardif
0b81edc88189 batman-adv: prevent TT request storms by not sending inconsistent TT TLVLs
24443bf39b9b batman-adv: Fix TT sync flags for intermediate TT responses
f4d59337e0b8 batman-adv: Avoid race in TT TVLV allocator helper
8142ea6bab53 batman-adv: Fix internal interface indices types
13e6a853099e batman-adv: Fix lock for ogm cnt access in batadv_iv_ogm_calc_tq
8c69c09f5ede batman-adv: Fix check of retrieved orig_gw in batadv_v_gw_is_eligible
ea40bc532c52 batman-adv: Always initialize fragment header priority
0478b59311ab batman-adv: Avoid spurious warnings from bat_v neigh_cmp implementation
805596e6a807 batman-adv: fix TT sync flag inconsistencies
f357813e20ff batman-adv: Accept only filled wifi station info
1c5a456ac64a batman-adv: Use default throughput value on cfg80211 error
65927b335012 batman-adv: Fix rx packet/bytes stats on local ARP reply
4ae2c0625ecb batman-adv: Initialize gw sel_class via batadv_algo
e1244b876d77 batman-adv: Fix transmission of final, 16th fragment
351f7cbfff97 batman-adv: Fix double free during fragment merge error
af83aa2e1f27 efi: Add a sanity check to efivar_store_raw()
11ac2ba035f4 ipv6: restrict IPV6_ADDRFORM operation
159ba99817a8 iommu/vt-d: Ignore devices with out-of-spec domain number
1d66a5502feb iommu/vt-d: Fix the wrong printing in RHSA parsing
cb87b895f146 mwifiex: Fix heap overflow in mmwifiex_process_tdls_action_frame()
a2ecb2d17b70 netfilter: cthelper: add missing attribute validation for cthelper
85a7e73aacda nl80211: add missing attribute validation for channel switch
0a626cd0438c nl80211: add missing attribute validation for beacon report scanning
d4ffeafda724 nl80211: add missing attribute validation for critical protocol indication
045bf0978374 iommu/vt-d: Fix a bug in intel_iommu_iova_to_phys() for huge page
5145afc851ad iommu/vt-d: dmar: replace WARN_TAINT with pr_warn + add_taint
16d8f5dec5a6 efi: Fix a race and a buffer overflow while reading efivars via sysfs
b5badebc9e3c ARC: define __ALIGN_STR and __ALIGN symbols for ARC
3a91d55c921d KVM: x86: clear stale x86_emulate_ctxt->intercept value
c919b9a14829 gfs2_atomic_open(): fix O_EXCL|O_CREAT handling on cold dcache
ca9a513b0110 cifs_atomic_open(): fix double-put on late allocation failure
346ff2f614e5 drm/amd/display: remove duplicated assignment to grph_obj_type
3772b93dc3bc workqueue: don't use wq_select_unbound_cpu() for bound works
412c17e2ddd7 iommu/vt-d: quirk_ioat_snb_local_iommu: replace WARN_TAINT with pr_warn + add_taint
64007a74ac01 virtio-blk: fix hw_queue stopped on arbitrary error
e9ed467f390d net: phy: fix MDIO bus PM PHY resuming
529f4b7ad397 cgroup: memcg: net: do not associate sock with unrelated cgroup
9fc9ba073f67 bonding/alb: make sure arp header is pulled before accessing it
7a7c8ba58283 slip: make slhc_compress() more robust against malicious packets
a01b5e507c99 net: fec: validate the new settings in fec_enet_set_coalesce()
3bd2095b8058 macvlan: add cond_resched() during multicast processing
2ad8246c4dbe ipvlan: don't deref eth hdr before checking it's set
8621153cb6c8 ipvlan: do not use cond_resched_rcu() in ipvlan_process_multicast()
276a875f7124 ipvlan: egress mcast packets are not exceptional
96ce4520f395 ipvlan: do not add hardware address of master to its unicast filter list
8079db5d729a ipvlan: add cond_resched_rcu() while processing muticast backlog
65ff45dfdc63 nfc: add missing attribute validation for vendor subcommand
0ba5c3ddb59c nfc: add missing attribute validation for SE API
26623ec1fcd6 team: add missing attribute validation for array index
c8571e0c2b68 team: add missing attribute validation for port ifindex
65c9a7a213e4 net: fq: add missing attribute validation for orphan mask
1abae2c50c67 macsec: add missing attribute validation for port
76de44ee4d7b nl802154: add missing attribute validation for dev_type
5869a748587a nl802154: add missing attribute validation
0b21c9cbf647 fib: add missing attribute validation for tun_id
285112d5a481 bnxt_en: reinitialize IRQs when MTU is modified
f120a4000223 r8152: check disconnect status after long sleep
e5660ee1a35b net: nfc: fix bounds checking bugs on "pipe"
fc094dab7eb9 net: macsec: update SCI upon MAC address change.
6d80c781790e ipv6/addrconf: call ipv6_mc_up() for non-Ethernet interface
6f1aea70c1f8 gre: fix uninit-value in __iptunnel_pull_header
78604444fb87 cgroup, netclassid: periodically release file_lock on classid updating
da933d989ff5 net: phy: Avoid multiple suspends
4ffa65aa2bc5 phy: Revert toggling reset changes.
dbfc9e987856 NFS: Remove superfluous kmap in nfs_readdir_xdr_to_array
 

tomdot

Senior Member
Mar 23, 2007
276
33
Thanks for the update!

I first tried to do an ODIN update (AP slot), but it showed FAILED.
Next I wasn't able to perform and update in TWRP (files cannot be decrypted)? I ended up having to factory reset again.

Please advise how to updae?
 
Last edited:

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  • 17
    My LuisKERNEL (PIE/TEN) for Samsung Galaxy Tab S5e (gts4lvwifi/gts4lvlte)
    device.png

    Code:
    *** Disclamer
    /*
     * Your warranty is now void.
     *
     * We are not responsible for bricked devices, dead SD cards,
     * thermonuclear war, or you getting fired because the alarm app failed. Please
     * do some research if you have any concerns about features included in this ROM
     * before flashing it! YOU are choosing to make these modifications, and if
     * you point the finger at us for messing up your device, we will laugh at you.
     *
     */

    Notice
    I like to share my work for my Samsung Galaxy Tab S5e (LTE). I have compiled this kernel so that my Galaxy Tab performs better and rooting with Magisk works better.
    I'm testing this kernel on my Samsung Galaxy Tab S5e (gts4lvwifi) device and I think it should work on the Samsung Galaxy Tab S5e LTE (gts4lvlte) too.
    The kernel I use on the latest Samsung Stock ROM with Magisk 20.3 and Magisk Manager App + Ex Kernel Manager.
    The source code is a fork from the official LineageOS 17.1 sources.

    The kernel runs for me with LineageOS and Stock Samsung ROM.

    Sometimes I get a lot of help or feature requests from users of my LuisROMs and LuisKERNELs. My dog Luis and I try to fulfill most of the wishes, but that is not always possible. I do that as a little hobby and Luis does not always want to build ROMs :). Please understand if I can not always answer directly.

    Kernel: I have pached up the Kernel to Linux 4.9.217 with many mods other devs (thanks to @LuK1337 for the base an incredible work!)
    • Pached from 4.9.112 up to 4.9.217 from caf
    • Removed lots of excessive bloat (improves security and performance)
    • Improved stability (several bugs not listed here have been fixed)
    • Boeffla Wakelock blocker driver V1.1.0
    • More I/O-Schedulers (fiops, sio, zen, maple)
    • Added fsync on/off support.
    • Disabled crc check
    • Optimized for performance and battery life
    • Compatible with EX Kernel Manager
    • Compatible with systemless root (recommend Magisk 20.x or higher !!!)
    • Wireguard kernel support
    • Many other misc. improvements not listed here

    First time installation:

    Update:

    Downlads:

    Kernel source:

    Enjoy!
    Frank
    7
    LuisKERNEL Update to Linux 4.9.217 + Wireguard 0.0.20200318 kernel driver

    Hello Friends,

    i have updated my LuisKERNEL up to Linux 4.9.217 from caf sources and wireguard kernel driver up to 0.0.20200318.

    Downloads:
    TWRP: http://luis-builds.de/downloads/lin...s4lvlte)/LuisKERNEL-4.9.217-twrp-20200322.img
    Odin: http://luis-builds.de/downloads/lin...s4lvlte)/LuisKERNEL-4.9.217-odin-20200322.tar

    if you have a rooted device then after flash my kernel reflash magisk or other SU for root your device!

    Cu Frank

    Changelog:
    * kernel/samsung/sdm670/
    0923934ff053 Merge branch 'upstream-korg-linux-4.9.y' into 10.0-luis-los
    11254e5c2d36 net: update wireguard 0.0.20200318
    10a20903d7ac Linux 4.9.217
    0bde22da659c ipv4: ensure rcu_read_lock() in cipso_v4_error()
    ff58bb340c43 mm: slub: add missing TID bump in kmem_cache_alloc_bulk()
    ed14ef08c55a ARM: 8958/1: rename missed uaccess .fixup section
    3a4c51d02e70 ARM: 8957/1: VDSO: Match ARMv8 timer in cntvct_functional()
    e06aeb9f3da6 jbd2: fix data races at struct journal_head
    4306259ff6b8 signal: avoid double atomic counter increments for user accounting
    d2a49017c249 mac80211: rx: avoid RCU list traversal under mutex
    4f1547a774dd net: ks8851-ml: Fix IRQ handling and locking
    c0d470e3ec3b cfg80211: check reg_rule for NULL in handle_channel_custom()
    5e953295a8d9 HID: i2c-hid: add Trekstor Surfbook E11B to descriptor override
    479912f78ffc HID: apple: Add support for recent firmware on Magic Keyboards
    f2a18533a69e ACPI: watchdog: Allow disabling WDAT at boot
    22333af249bc perf/amd/uncore: Replace manual sampling check with CAP_NO_INTERRUPT flag
    135075ae4eaf batman-adv: Use explicit tvlv padding for ELP packets
    34673c28f43d batman-adv: Avoid probe ELP information leak
    3c6ed319b82f batman-adv: update data pointers after skb_cow()
    baed34edb061 batman-adv: Don't schedule OGM for disabled interface
    1f9fd18c2025 batman-adv: Avoid free/alloc race when handling OGM buffer
    5841c1bb484f batman-adv: Avoid free/alloc race when handling OGM2 buffer
    5f6dd57c7b50 batman-adv: Fix duplicated OGMs on NETDEV_UP
    3c3e542a40ad batman-adv: Prevent duplicated gateway_node entry
    b081203732b8 batman-adv: Fix multicast TT issues with bogus ROAM flags
    292ddcd9d68e batman-adv: Avoid storing non-TT-sync flags on singular entries too
    9bcfdf4f8fa1 batman-adv: Fix debugfs path for renamed softif
    f7e13c96077a batman-adv: Fix debugfs path for renamed hardif
    0b81edc88189 batman-adv: prevent TT request storms by not sending inconsistent TT TLVLs
    24443bf39b9b batman-adv: Fix TT sync flags for intermediate TT responses
    f4d59337e0b8 batman-adv: Avoid race in TT TVLV allocator helper
    8142ea6bab53 batman-adv: Fix internal interface indices types
    13e6a853099e batman-adv: Fix lock for ogm cnt access in batadv_iv_ogm_calc_tq
    8c69c09f5ede batman-adv: Fix check of retrieved orig_gw in batadv_v_gw_is_eligible
    ea40bc532c52 batman-adv: Always initialize fragment header priority
    0478b59311ab batman-adv: Avoid spurious warnings from bat_v neigh_cmp implementation
    805596e6a807 batman-adv: fix TT sync flag inconsistencies
    f357813e20ff batman-adv: Accept only filled wifi station info
    1c5a456ac64a batman-adv: Use default throughput value on cfg80211 error
    65927b335012 batman-adv: Fix rx packet/bytes stats on local ARP reply
    4ae2c0625ecb batman-adv: Initialize gw sel_class via batadv_algo
    e1244b876d77 batman-adv: Fix transmission of final, 16th fragment
    351f7cbfff97 batman-adv: Fix double free during fragment merge error
    af83aa2e1f27 efi: Add a sanity check to efivar_store_raw()
    11ac2ba035f4 ipv6: restrict IPV6_ADDRFORM operation
    159ba99817a8 iommu/vt-d: Ignore devices with out-of-spec domain number
    1d66a5502feb iommu/vt-d: Fix the wrong printing in RHSA parsing
    cb87b895f146 mwifiex: Fix heap overflow in mmwifiex_process_tdls_action_frame()
    a2ecb2d17b70 netfilter: cthelper: add missing attribute validation for cthelper
    85a7e73aacda nl80211: add missing attribute validation for channel switch
    0a626cd0438c nl80211: add missing attribute validation for beacon report scanning
    d4ffeafda724 nl80211: add missing attribute validation for critical protocol indication
    045bf0978374 iommu/vt-d: Fix a bug in intel_iommu_iova_to_phys() for huge page
    5145afc851ad iommu/vt-d: dmar: replace WARN_TAINT with pr_warn + add_taint
    16d8f5dec5a6 efi: Fix a race and a buffer overflow while reading efivars via sysfs
    b5badebc9e3c ARC: define __ALIGN_STR and __ALIGN symbols for ARC
    3a91d55c921d KVM: x86: clear stale x86_emulate_ctxt->intercept value
    c919b9a14829 gfs2_atomic_open(): fix O_EXCL|O_CREAT handling on cold dcache
    ca9a513b0110 cifs_atomic_open(): fix double-put on late allocation failure
    346ff2f614e5 drm/amd/display: remove duplicated assignment to grph_obj_type
    3772b93dc3bc workqueue: don't use wq_select_unbound_cpu() for bound works
    412c17e2ddd7 iommu/vt-d: quirk_ioat_snb_local_iommu: replace WARN_TAINT with pr_warn + add_taint
    64007a74ac01 virtio-blk: fix hw_queue stopped on arbitrary error
    e9ed467f390d net: phy: fix MDIO bus PM PHY resuming
    529f4b7ad397 cgroup: memcg: net: do not associate sock with unrelated cgroup
    9fc9ba073f67 bonding/alb: make sure arp header is pulled before accessing it
    7a7c8ba58283 slip: make slhc_compress() more robust against malicious packets
    a01b5e507c99 net: fec: validate the new settings in fec_enet_set_coalesce()
    3bd2095b8058 macvlan: add cond_resched() during multicast processing
    2ad8246c4dbe ipvlan: don't deref eth hdr before checking it's set
    8621153cb6c8 ipvlan: do not use cond_resched_rcu() in ipvlan_process_multicast()
    276a875f7124 ipvlan: egress mcast packets are not exceptional
    96ce4520f395 ipvlan: do not add hardware address of master to its unicast filter list
    8079db5d729a ipvlan: add cond_resched_rcu() while processing muticast backlog
    65ff45dfdc63 nfc: add missing attribute validation for vendor subcommand
    0ba5c3ddb59c nfc: add missing attribute validation for SE API
    26623ec1fcd6 team: add missing attribute validation for array index
    c8571e0c2b68 team: add missing attribute validation for port ifindex
    65c9a7a213e4 net: fq: add missing attribute validation for orphan mask
    1abae2c50c67 macsec: add missing attribute validation for port
    76de44ee4d7b nl802154: add missing attribute validation for dev_type
    5869a748587a nl802154: add missing attribute validation
    0b21c9cbf647 fib: add missing attribute validation for tun_id
    285112d5a481 bnxt_en: reinitialize IRQs when MTU is modified
    f120a4000223 r8152: check disconnect status after long sleep
    e5660ee1a35b net: nfc: fix bounds checking bugs on "pipe"
    fc094dab7eb9 net: macsec: update SCI upon MAC address change.
    6d80c781790e ipv6/addrconf: call ipv6_mc_up() for non-Ethernet interface
    6f1aea70c1f8 gre: fix uninit-value in __iptunnel_pull_header
    78604444fb87 cgroup, netclassid: periodically release file_lock on classid updating
    da933d989ff5 net: phy: Avoid multiple suspends
    4ffa65aa2bc5 phy: Revert toggling reset changes.
    dbfc9e987856 NFS: Remove superfluous kmap in nfs_readdir_xdr_to_array
    5
    LuisKERNEL Update

    Hi Friends,

    new kernel update is out :)

    Download:
    LuisKERNEL-4.9.112-191208-twrp-boot.img
    LuisKERNEL-4.9.112-191208-odin.tar

    Link: http://luis-builds.de/downloads/lineageos/rr/Samsung_Galaxy_Tab_S5e_(gts4lvwifi)(gts4lvlte)/LuisKERNEL/

    Flash with odin (.tar) or twrp (.img) to boot partition.

    Changelog:
    • Merge branch 'upstream-los-lineage-17.0' into pie-luis-los
    • msm: vidc: Add NV12_512 support for encoder
    • uapi: Add COLOR_FMT_NV12_512
    • Revert "Android.bp: Initial header export bp for Android (qseecom only)"
    • msm: kgsl: run kgsl-workqueue as a high prio wq
    Cu Frank
    3
    update - Tried the kernel on sm-T720 , worked without issues. No kcal support.
    - please consider adding kcal/color/saturation options if possible.

    Thanks
    Kcal will merged in the next days if stable ;) Testing today ;)))

    Cu Frank
    2
    I bought a used tab s5e from a local electronics store for less than half of the msrp. I then discovered that it wouldnt charge past 70%. Later I peeled off the sticker on the back and the tablet said 'not for sale'. It turns out that this was a display unit and these are configured to not charge past 70% to protect the battery. I didn't want to return it because it was a really good deal even if it doesn't fully charge. My question is will flashing this kernel allow my tablet to charge to 100%? Or this kernel will not be compatible with it? Thanks in advance.

    There's an option in the battery settings that limits the tablet from charging beyond 85% to extend the battery life, you can take a look at that first. If that doesn't help, you can try a custom ROM and Kernel. Start with the kernel, as it is less intrusive. but to be honest, I have no idea if that would help. You can also try a factory reset.
    If I was a betting man, I'd bet on Samsung limiting that device's charging capacity though the ROM.
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